I've never really seen my hedgehog play...I've tried giving her various toys but she doesn't tend to react to them at all (except for getting her head stuck in the tube repeatedly, which, while funny, doesn't seem like playing). How do they play? How do you know they're playing and not just moving something around because it's in their way or something? What kinds of things do they do to the things they play with? How does your hedgehog play in particular? How can I get my hedgehog to play when she ignores the toys I give her and just wants to run, eat, and sleep?