I'm introvert because I'm a kind of private person , sometimes it may be hard to talk to other people, also I like staying on my own without anyone ) 

I'm both! Lol. Sometimes I feel like being an introvert, and sometimes I feel like being an extrovert. It depends on my mood that day.

Definitely INtrovert. I am a shy person, often skeptical towards other people, and I usually stay well on my own.

At the same time I have a strong behaviour, I am a fighter, but maybe without any troops :)

I know that I am an introvert because being quiet by myself (and my cat) always energizes me. I have been to many activities in which I took part and looked like an extrovert, but I come home drained from them. I like the activities, but they are not where my energy comes from.

I am introvert, for me is difficult to meet new people because I am shy and it is hard to talk with other people.