Use short, repeated notes like claps, smooches, and short, repeated words to stimulate activity in your dog. Use them when you want your dog to come to you or to speed up. Use one long, continuous flat sound to soothe or slow your dog, as you might when you’re trying to calm her at the vet’s. Use a burst of one short, highly modulated note to effect an immediate stop of a fast-moving dog, saying “No!” or “Hey!” or “Down”