You've repeatedly gotten the definition of introversion wrong in this thread. I personally think it's just another way us humans have invented to categorize eachother but basically introversion has nothing to do with confidence or shyness and everything to do with how you "recharge."
When I'm out socializing, I'm often the life of the party. I was called a "social butterfly" over the weekend at a tailgate. I'm usually the guy at the party or whatever being loud, having a good time, talking to everyone and getting all of them to have a good time too.
I also have no trouble talking to people. I often just strike up conversations with strangers in lines, elevators, just walking down the street, etc. I can approach the pretty girl and talk to her, and not be nervous about it. I can speak in public, and I've been essentially a "door-to-door salesman" (cold calls instead of doors, but you get what I mean).
But, at the end of the day, I need to have my "anti-social" time. I get burnt out on all of the stuff above, and if I do it too much, I'll get annoyed and tired, and end up not being very fun to be around. After too much partying, I need a few nights to just chill at home and relax, maybe with the people closest to me (at most).
I'm outgoing. But I'm also introverted.
Introversion is a quality that can't be (easily) changed. Being outgoing is a skill that one can learn.
