If you don't mind just tilting your head a bit...
I don't know why we do the things we do. Ever since I can remember, Clay and I have performed little dance moves that we find humorous and blurt out, "Hey! Try this." Then the other person says, "You're stupid" and stands still for about four seconds before the urge to try the stupid dance move takes over and it's So, You Think You Can Dance....gone wrong.
This move I created, but couldn't do it for the life of me. You have to swish your arms and legs in the same direction as fast as you can and then change you arms to go opposite without stopping your feet. Understand? No? That's okay, my brain couldn't make my arms go opposite without my feet stopping.
You're all trying it right now, aren't you? You know you want to.