I think about sex rarely, sometimes never. I'm a 31 year old virgin and TERRIFIED of sex. I'll die a virgin. But then again I'm not your normal kinda guy.
For me? I pick my nose when nobody's around. I'll be SOOOOO self conscious that I can't even think doing it when someone's in a room with me but as soon as I'm away from people, up the finger goes. Damn, I suck.