While you’re playing this game, don’t worry whether your dog sits or not, because I want you to pay attention to your behavior. Did you raise your hand or your finger? Did you step forward a bit? Tilt your head? After you’ve observed your own behavior, see if you can find a pattern to what movements your dog sits to and what he doesn’t (beyond Fido’s getting sick of your asking for a “sit” over and over!). Experiment with different movements and you’ll probably discover that your dog is keyed in to specific actions, just as much as, or more than, your voice.