Here's a photo gallery of weird faces people make while dancing.
I consider myself an expert on this topic, given the photo above. I love how if you hang out with a group of friends long enough, you can pretty much predict what everybody's signature "dance face" is going to be.
Something that I love even more?
When of a pic of somebody mid-dance gets posted on a social networking site Monday morning, and that person tries to add a witty comment suggesting that he or she MEANT to make that awful vampire-inspired facial expression.
No you didn't, dude. Trust me.