Eric picks up silly tricks in no time so we are forever teaching him things to make us laugh. His latest is "Hands up who wants......." where he stands on his back legs paws held high until you acknowledge he has his hands up. What is particularly funny though is if you don't acknowledge him he yaps to complain 
He also crawls across the floor on his belly to say sorry if you wag your finger at him, we don't do that out of thehouse though for fear someone mistakes him for being a traumatised and badly treated dog.