Place the palm of your hand on the left side of your dog's chest just behind the elbow. (lessonsfromaparalyzeddog.com)
The live ring — the one that moves — should be at the top right side of the dog's neck; pulling and releasing the live ring will tighten and loosen the collar. (canismajor.com)
An even easier system for house training is using a crate with a dog door and an enclosed dog run on the other side of the dog door. (sitmeanssit.com)