Well, maybe if you like to sing and dance. Maybe you two should hit a karaoke bar and have a few drinks. It'll give you a chance to just chill out, or have a song and a go at it, and 2) backup: blame it on the alcohol later.
Karaoke's always fun, just grab a booth (if you're scared to do it in public) and if not, you can always just borrow a dvd from some video store with like karaoke discs somewhere. (they must have it somewhere in town).

Nothing wrong with dancing either. Just dance. Whether it's alone or together. Go to a club sometime. Maybe just let him teach you how to (even if you already know), makes him maybe feel as though his "good-dancer"-ness coming out and he is teaching you in the process.
Break the ice a bit.