We've been working on this trick for a few weeks now, it was a hard one for Nani. I think she didn't really understand what I wanted her to do. I would say bang pointing my finger at her, and then tip her on her back. Immediately I would praise her and give a treat. Then she started expecting being pushed so she would grasp my finger with her foot which forced me to manually set her on her back. That lasted forever, she just didn't understand I wanted her to do it herself. If I didn't tip her over she'd just stare at me and then go run off to get into something. FINALLY a few days ago I tried again, and what do ya know she did it!