Another command that all my dogs learn is "Out of the kitchen". I don't really believe they know what the kitchen is but we have tile in our kitchen and hallway and carpet in the livingroom/dining room. It's been that way in each house I've had. When I give that command, they avoid hard flooring altogether and know their paws should be on carpet...it's quite effective.

It's the exact same scenario for us, sstarace. They know to get on the carpet when we're eating and cooking. I'm still working with them, but they are getting better and better.