Well. I usually look at his eyes and his hair. And his body type too! Well, I look at their body type a lot because I get very intimidated by huge guys. If they're toned, then that's a different story lol. But most of all I try and get a sense of what his personality is like. Shy, cocky etc, etc.
Yes, yes, and not so much. But keep in mind that girls don't just care about physical characteristics...well, at least girls like me. ; ) I look for intelligent, trustworthy guys. Guys that are honest and sincere.
I look at the eyes. If he has crazy eyes I turn and run lol. But also to see what he's looking at, if he's looking at me I want to know more about him, if he's staring at my boobs I know he's not the one for me.