Hand targeting is a great way to manuver your dog around you from side to side; away from the fence with barking dogs for example or to switch sides if another dog is walking and you want to be between your dog and the unknown dog passing by. Your dog needs to learn these games first to be successful:
https://youtu.be/2vUlQsBVyRg
https://youtu.be/3fKC8gFZ5LQ