Replying to Semi-formal dance, first dance ever.

Hey guys, so in about an hour I'm going to be going to my schools semi-formal dance. I'm a Junior in highschool and have never gone to a dance before (I know I'm pretty lame). Well this year is different because I have a girlfriend now and would like to go to this dance with her. Well I'm pretty nervous first off, and I've never danced before in my life so I don't even know what to do or what to expect.

I know NSG won't really give me any serious answers but I'm wondering if anyone has any funny highschool dance stories or anything like that.

I'm going to ask for advice, if there's anything I should know before I go let me know. (I just want to laugh at your guyses troll responses too but if anyone has any serious advice let me know too.)

I know this is a dumb thread but I'm just nervous so I thought I'd make it anyways...