Have your friend ring the bell again (or repeat whatever the trigger situation you have chosen to work with) and go through the routine again. The more you repeat, the more he’ll understand that being quiet will be rewarded and you’ll see him being less and less excited by the sound of the bell and more focused on paying attention to you.
Of course, next time someone comes to the door, your dog will bark his little head off again. It will take many times and numerous repetitions of this exercise to put an end to his much practiced and very ingrained behavior. Remember, you’re not yet using the word Quiet as a cue to make him stop barking; he first has to fully understand that the behavior of NOT barking is called quiet. After a while when your dog has learned to associate the word with being quiet, you’ll be able to use the word as a cue to make him stop barking. If you use the word in the beginning, however, while he is in the middle of barking, you’ll be teaching him that the word Quiet actually means “bark”.
Directions for teaching COME:
See if you can lure the puppy into sitting in front of you when he reaches you. You can easily do that by pulling your hand a little upwards once he reaches you. After a few repetitions, your puppy might offer the sit by himself. Remember, you'll want your dog to come close enough for you to grab his collar.
Tips: Begin working on this - and on every other cue -in a non-distracting environment. Once your -pup understands the fun Come Game, you can increase the distance and the level of distractions. You can also do a Round Robin version of this game by adding family members and having the puppy run from person to person. Begin with everyone in the same room but as puppy gets good at this, you can hide in different rooms and have your puppy find you. Remember to reward the puppy generously when he reaches each person.
If you make this a fun game for your puppy and practice this often, you will have a much better shot at having your puppy turn around at the sound at the cue Come even if he's in the middle of playing with another dog.