Good dog trainers often use a small box called a clicker. The clicker makes a distinctive clicking sound when you press on it. This sound tells your dog “Yes, that is what I want you to do,” and it promises her a reward for a job well done. The clicker marks the exact moment she has done what you like. If you don’t like using gadgets, your dog is afraid of the clicker or you can’t use a clicker for some other reason, you can use a marker word, like “YES” instead of the clicker. You can also use a hand signal or the flash of a penlight if your dog is deaf. I will assume you are using a clicker below, but if you are using something else to mark the behavior, just use it in the places where I say to click.