Most puppies probably learn how to behave when they attend doggie training school. By the time they are adults, they have mastered obedience techniques. I have seen some of them in the park while walking my dog or on the streets near my house. They will drop to the ground immediately at the sound of their master’s command. A whistle, a short order, or a hand gesture, and they stay motionless waiting for their owner to tell them what to do. Seeing that alone has given way to too many questions in my head. How do they do that?