Kitzel does this but less & less as we yelp! They are smart but you have to think like a dog and not like a person. We get on the floor w/back sides up in the air when we want to play. Now w/a wag of the finger is understood pretty quickly---but they are not consistent in behavior yet at this age---stay calm and keep repeating. Kitzi is just over 3 months. He does several things on command---some less well than others. We just keep repeating and w/time I know he will get it. You are doing a great job---she will love you for being the alpha dog!