Cute but HOW?!

I love this game Ive been playing it for a very long time but how do you get your dog to roll over?! Please make an update with an icon where you can tap it and it gives you virtual books on how to do tricks and stuff :) I still love this game! Oh and also in the dog show it tells me to lie down and I make my dog lie down but it says I didnt do the trick properly :( plz fix thx

Jum67 about My First Dog., v1.0.1