My pom does the same thing... I have noticed that he does this when he is snacking, but when he is really hungry he will stay right there and eat. Hope that helps to know you aren't alone.
Meghan

My two poms do the same thing, mainly during snacking too, it must just be a trait of them. I don't think there is anything you can do nor should do as it is just one of those quirks about the dog that you need to accept.