"Oh, yeah!"

I taught Sam how to say "Oh, yeaaahhh." Then he came up with some dance and it always ends with it. So he's been doing it a lot lately, and its hilarious, so here's some video of it.
I tried to edit it, but most of it was so cute and funny, I couldn't decide what to cut. Sorry.
Also, he's been doing this thing where he is some character, like a dog, or a robot, or Wall-E, and then he actually runs his hand over his face and goes back to being Sam, like a mime or something. It's hilarious and slightly disturbing. =)