Definitely an introvert.
If I'm in a group of people I know, or am comfortable with, I have no problem talking and overall being myself. I need time to re-energize if I'm in a socially intense situation (which sounds kinda weird). In public I never speak unless needed, or really make much eye contact with anyone when not necessary...it doesn't get to the point that it looks weird, I don't even realize I'm doing it. Talking to strangers is never really an issue for me, but people I encounter quite often are harder to converse with. Female acquaintances in particular
I also find it much much easier to talk to adults than my peers.