How do I keep my dogs butt in for a sit? Sometimes she does it right and other times it isn't right. I really don't know how to show her the difference without making her get up and redo it. In class they teach us to move the dog's butt as they sit but my dog is so long I have to look half the time I don't even know her sit wasn't correct unless I look over the entire dog. The front part of here will be fine but that butt is often out of place.