Hmm, I probably try to entice him to play with either tug toy (they are physically different and he sometimes seems really excited for one or the other, and treats them differently) within every chunk of activity. A "chunk" being after rest when I take him outside, so maybe every 3ish plus hours. When it's mealtime though, I have been hand feeding and asking for basic things like "sit" and "down". After a meal he usually wants to play with something. I both play tug with the rope, and slide it across the floor because he likes running after it. He's getting bored with that, too, maybe because it's the same toy, just a different action.