I look much better than I did when I was younger!
Apparently I look young for my age (although I'm not *that* old) and people usually guess that I'm 6 or 7 years younger than I am. However, like others have said, with age comes a few things -- confidence, better fashion sense, better hair, and for me at least, better shape because I never used to work out and now I do all the time. I get much, much, MUCH more attention from guys than I did when I was in college.
And curiousgirl -- you're probably a hottie, and guys might be intimidated by you at clubs. Stuff like that happens all the time. You should make the first move if you see someone interesting!!