No dog wags his tail unless he’s having a good time no amount of training can make him do it. The spectators know this and appreciate his good nature and his evident enjoyment of his work. It’s unnecessary to ask them to give the clever little dog a great big hand; they do it spontaneously.
The same thing is true of dogs that are being put through their paces and posed in the show ring to be judged for conformation, soundness, condition, and so forth, in competition for bench honors. Wagging tails are as infectious there as everywhere else, and even judges are influenced by them sometimes.
Since you expect Jock to be a good showman, you must be a good showman too. For example, you will learn in the next chapter how to teach Jock to search for, find and bring to you some familiar object like a ball or an old glove and to “speak” on signal. For trick purposes you will substitute for the ball or glove your cane or umbrella or Jock’s leash and develop the two perfectly simple acts into a much more elaborate routine. When your audience is duly seated you call Jock to you and talk to him exactly as you would to your child of fourteen, using a quiet conversational tone.