We have been working on close the door... But we can't seem to advance. She is at a point where i say "close the door" and she walks over to the door and holds her nose on it, but she won't push hard! In the past week or two we haven't made any progress at all, other than her maybe holding her nose on the door a little longer. Any ideas for how to get the idea in her head that she actually needs to push, not just set her nose on it?