Don't feel like dancin'...?

Dances. Why do I go to them? Probably just to see my friends and have fun, and maybe do a few slow dances (which practically doesn't really count as dancing anyway). Some of the music they play at dances is really good, but I've never really experienced the urge to break out into a hoppin' or twisting move. Maybe it's because I know I don't really know how without making myself look the fool, my personality simply forbids me to, or, like I said, maybe it's because I never really feel like it. Why don't I feel like dancing, at all?
My self-image, to me, has somewhat of an effect on me though I try not to let it sway me much. Standing there at a dance, when I'm not dancing, makes me feel somewhat uncomfortable, because I'm not doing something. But on the other hand I have absolutely no clue of what to do, so I'd rather do nothing than do something I don' t know how to do, unless I'm learning a step. I can't help but feel out of place or weird at least one point in the dance, because I feel like I'd stick out no matter what I do. Is the dance full of people who stick out, so if you don't stick out then you stick out?
My personality is a true blue-white, which means I can't be too creative unless I have the time to think things out and make connections. It also implies that I need guidelines or at least some kind of rule when I'm doing something or else it makes it all the harder for me to accomplish it. I can do line dances just fine and slow dances just fine, because either there's nothing to it, or you learn a specific sequence of movements and do them over, and over and over... The adrenaline powered rush/urge lacks whenever there is a climax in the song, maybe because I don't want to get caught up and actually try being creative on the spot. O_O
I guess I'll ask around for people who may be able to share some elightenment on my predicament. Until then I'll just continue to stick with line/slow dances and see if I can't learn a thing or two from my friends.