The trait of extroversion- introversion is a central dimensions of human personality theories. Extrovert are sociable and active where as introvert are reserved rather than unfriendly.

Susan cain in her book Quiet: The power of Introvert in a world that can't stop taking, says that introverts can be warm interested in others and powerful in their own way. If you have noticed, introverts use less words but usfull words.

If you don't whether your friend is an extrovert or introvert then may be this signs can help you to realize it.

1. They enjoy their own company. Even if you want to start up conversation with them they can ignore you or pay you no heed. Instead of talking to people they would rather like to spend time on ready, playing games or just listen to music.

2. They lead the best when others are self- starter. Though they are so quiet that they may not step up to the plate and running things, but they under some circumstances can be the best leader of all.

3. They are the last one to raise their hand when someone ask questions in a group. Even if they know the answer they won't reply, till you insist them to. They feel better to be quite and acquire more knowledge by listening to others.

4. They often use headphones even when they are not in public. Whether they listen song or not they like to put it to ignore people asking questions to them.

Introvert are very typical kind of person who are liked by indian society as it indicates a polite behavior. But in today's generation that person may have mental instability which have made him/her like that.

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