I recently had a chance to capture Nate and Sam doing their happy dance. Nate is especially passionate about his happy dance. I have caught him on more than one occasion doing it in his room when no one was looking. This is usually after we tell the boys we are about see GiGi and PaPa/Granny and Granddad, go to Uncle Tommy's house or to see Ruby, Jude and Baby Kara. We still have no idea where he learned this, but it's pretty cute.