I'm always watching people's footwork, shoes and posture. I never really understood my own lanky posture; until my "drill sergeant" minded older brother showed me how to stand and walk with better posture 3 years ago. I used to walk like Shaggy, from Scooby Doo. Now, I walk like a model or soldier according to what I've been told... rather come off a little pretensious on accident, for walking right any day.
Anyhow, I know that there is a lot of silent body language, and sometimes you can be getting the best signs from the most displeasing of signals.
Example 1: Guy can't dance, has no talent for dance; but he is more confident and almost "benign" to how foolish he looks, and all his moves show how open he is to everyone around him, save the fact the fact that he's in da club doing the hustle to 50 cent In Da Club!
Example 2: Guy knows how to dance. Has been taking classes for most of his life. Can dance by himself, or a partner. He insist on taking the dancefloor over, he doesn't acknowledge you trying to dance with him, he moves like an angel, but in between the lines his body language says "you better step! ...
I don't know about you, but I'd rather be dancing with the guy who knows how to have a good time, even if he can't show it using his body!
If I could have the best of both... well, that's a different story.