Most Helpful Girl
Some guys are intimidated by hot girls.
Some girls are intimidated by hot guys.
More often than not, it's the guy who does the approaching, rather than the girls. This makes it harder for some girls think it's okay to approach a guy.
Add to that the fact that the guy's really good looking - of course a girl's going to be nervous.
I've never approached a guy before.
Even if there's been lots of eye contact and stuff, I don't think I'd ever be secure enough to go up to a guy and make the first move. Even less likely if I found him really, really attractive.