shit man, DEFINITELY do not snap your fingers, lol.
giving dance tips over the internet isn't exactly ideal though..... just have fun man. seriously. 99% of the people out there (specifically white and female) have NO IDEA "how" to dance. Sit back and watch chicks dance at college parties. They get into groups to hide their individual horrid disabilities, have no rhythm whatsoever, and only actually dance in spurts of 10 seconds or so, then stop, then start again. Then when a 50 Cent song comes on they all give each other this stupid "sexy" face and perform some sort of faux mentally handicapped stripper routine with their cherubic friends. bleh
anyway, my point here is this - you are at college parties, which means everyone is drunk and having - LITERALLY - the time of their lives. Nobody is critiquing, and if they are, then they are not fun and you don't need to worry about them. The key to dancing in this situation is to not take yourself so seriously. Just have fun, get lost in the stupidity like the girls I described do. You can tell when someone is thinking about how they are dancing while they are dancing cause they look stiff and kind of sad. The dude who doesn't care and just has fun is the one that has the big smile on his face. And the group of girls dancing with him.