We may think that spotting the introvert in a crowd is easy breezy. Well think again. Although the stereotypical introvert may be the one at the party who's hanging out alone by the food table hovering over their smartphone, the one deemed the "social butterfly" can just as easily have an introverted personality.  Spotting the introvert can be quite the task. A lot of introverts are able to pass as extroverts. Most people don't even know what those words mean but albeit they fall into one of those categories.
People may not think that they’re introverts, especially if they’re not shy -- because they may not realize that being an introvert is about more than just cultivating and nurturing alone time. Instead, it can be more instructive to pay attention to whether they're losing or gaining energy from being around others, even if the company of friends gives them pleasure.
“Introversion is a basic temperament, so the social aspect -- which is what people focus on -- is really a small part of being an introvert," Dr. Marti Olsen Laney, psychotherapist and author of "The Introvert Advantage. "It affects everything in your life.” Yes it does indeed.
Despite the growing conversation around introversion, it remains a misunderstood personality trait. 
But more and more introverts are telling us about what it really means to be a "quiet" type. I know that I am both, okay a little more of one than the other (loud) but let's get into it:
1. Small talk is a bother. Some talk is REALLY small talk!

Introverts are notoriously small talk-phobic, as they find idle chatter to be a source of anxiety, or at least annoyance. For many quiet types, chitchat can feel disingenuous or pointless.
Let's clear one thing up: Introverts do not hate small talk because they dislike people, we hate small talk because we hate the barrier it creates between people. Personally, I don't hate small talk. I hate small talk that goes on forever and where I must fight to get a few words in edgewise! Some people just talk to hear themselves and to get sympathy or empathy from the listener. "Aaaahh! Shut it already would ya'?" I think I am a bigger talker myself than listener but I have grown to know how to balance the two so as not to ramble on tirelessly much at the annoyance and torment of others.
2. You go to parties -– but not to meet people. People? Where's the bar?
If you're an introvert, you may sometimes enjoy going to parties, but chances are, you're not going because you're excited to meet new people. At a party, most introverts would rather spend time with people they already know and feel comfortable around. If you happen to meet a new person that you connect with, great -- but meeting people is rarely the goal. Yup, that's me!
3. You often feel alone in a crowd.

 I remember having a mild panic attack some years ago at an election rally. It was the most terrifying feeling in the world but that was also the most people I was ever sandwiched in between in my entire life! EEeeks! Introverted much?

4. Networking makes you feel like a phony and I kiss no ass no get along with no face.
Networking or small-talk with the motive of advancing your career can feel particularly disingenuous for introverts, who crave authenticity in their interactions.
Networking is stressful if we do it in the ways that are stressful to us, I advise introverts to network in small, intimate groups rather than at large ones to limit the tension.
5. You've been called "too intense."
book nietzsche
Do you have a penchant for philosophical conversations and a love of thought-provoking books and movies? If so, you're a textbook introvert.
Introverts like to jump into the deep end of things and think far beyond what is typically thought of.
6. You're easily distracted.
While extroverts tend to get bored easily when they don't have enough to do, introverts have the opposite problem -- they get easily distracted and overwhelmed in environments with an excess of stimulation.
"Extroverts are commonly found to be more easily bored than introverts on monotonous tasks, probably because they require and thrive on high levels of stimulation. In contrast, introverts are more easily distracted than extroverts and, hence, prefer relatively unstimulating environments (although there are like 6 tabs active on my browser!).
7. Downtime doesn't feel unproductive to you.
home lounging coffee
One of the most fundamental characteristics of introverts is that they need time alone to recharge their batteries. Whereas an extrovert might get bored or irritated spending a day at home alone with tea and a stack of magazines, this sort of down time feels necessary and satisfying to an introvert. This time I must spend doing something, but doing it alone such as cleaning or cooking.
8. Giving a talk in front of 500 people is less stressful than having to mingle with those people afterwards.
Introverts can be excellent leaders and public speakers -- and although they're stereotyped as being the shrinking violet, they don't necessarily shy away from the spotlight. Performers like Lady Gaga, Christina Aguilera and Emma Watson all identify as introverts, and an estimated 40 percent of CEOs have introverted personalities. Instead, an introvert might struggle more with meeting and greeting large groups of people on an individual basis. you can say we have a large  alter-ego.
9. When you get on the bus, you sit at the end – not in the middle.
sitting alone subway
Whenever possible, introverts tend to avoid being surrounded by people on all sides.
We're likely to sit in places where we can get away when we're ready to. I usually sit at the first seat or if in a room, at the very front where everyone else avoids. Nifty!
10. You start to shut down after you’ve been active for too long.
Do you start to get tired and unresponsive after you've been out and about for too long? It's likely because you’re trying to conserve energy. Everything introverts do in the outside world causes them to expend energy, after which they'll need to go back and replenish their stores in a quiet environment. Short of a quiet place to go, many introverts will resort to zoning out. This is an absolute must for me. I can tell right down to the time that I need some peace and quiet.
11. You're in a relationship with an extrovert.
couple having fun
It's true that opposites attract, and introverts frequently gravitate towards outgoing extroverts who encourage them to have fun and not take themselves too seriously.
What happens though when there are two innies together in a reclusive bubble? Then someone's got to get away, that's what!
12. You'd rather be an expert at one thing than try to do everything.
The dominant brain pathways introverts use is one that allows you to focus and think about things for a while, so they’re geared toward intense study and developing expertise.
13. You actively avoid any shows that might involve audience participation.
Not me, I enjoy interaction.
14. You screen all your calls -- even from friends.
iphone finger
You may not pick up your phone even from people you like, but you’ll call them back as soon as you’re mentally prepared and have gathered the energy for the conversation.
"To me, a ringing phone is like having somebody jump out of a closet and go 'BOO!,'" says Dembling. I do like having a long, nice phone call with a friend -- as long as it's not jumping out of nowhere at me.
15. You notice details that others don't.
The upside of being overwhelmed by too much stimuli is that introverts often have a keen eye for detail, noticing things that may escape others around them. Research shows that introverts exhibit increased brain activity when processing visual information, as compared to extroverts.
16. You have a constantly running inner monologue.
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“Extroverts don’t have the same internal talking as we do,” says Olsen Laney. “Most introverts need to think first and talk later." I have a constant talkathon going on inside my head for most of my waking hours and then have to actively quiet my mind or meditate, otherwise I get overloaded with thoughts. We all know that our thoughts make up our feelings and so I've learned the importance of regulating them and sometimes, not thinking at all.
17. You have low blood pressure.
2006 Japanese study found that introverts tend to have lower blood pressure than their extroverted counterparts.
18. You’ve been called an “old soul” -– since your 20s.
lost in thought
Introverts observe and take in a lot of information, and they think before they speak, leading them to appear wise to others.
Introverts tend to think hard and be analytical, sometimes over-analytica.
19. You don't feel "high" from your surroundings
concert crowd
Neurochemically speaking, things like huge parties just aren’t your thing. Extroverts and introverts differ significantly in how their brains process experiences through "reward" centers.
20. You look at the big picture.
When describing the way that introverts think they're more interested in ideas and the big picture rather than facts and details. Of course, many introverts excel in detail-oriented tasks -- but they often have a mind for more abstract concepts as well.
21. You’ve been told to “come out of your shell.”
introverts class participation
Many introverted children come to believe that there's something "wrong" with them if they're naturally less outspoken and assertive than their peers. Introverted adults often say that as children, they were told to come out of their shells. While I was never told this, I can remember running to my bedroom the moment I heard the doorbell or someone out front. It was very awkward as a child in social situations but I did train myself out of that over the years. I can't picture being like Nell in my thirties. 
22. You’re a writer.
Introverts are often better at communicating in writing than in person, and many are drawn to the solitary, creative profession of writing. Most introverts -- like "Harry Potter" author J.K. Rowling -- say that they feel most creatively charged when they have time to be alone with their thoughts. It's as if the words just flow through your hands or better yet, like you think better and clearer once your hands are moving.
23. You alternate between phases of work and solitude, and periods of social activity.

Introverts can move around their introverted “set point” which determines how they need to balance solitude with social activity. But when they move too much -- possibly by over-exerting themselves with too much socializing and busyness -- they get stressed and need to come back to themselves, according Olsen Laney. This may manifest as going through periods of heightened social activity, and then balancing it out with a period of inwardness and solitude.