Hi, I used an unconventional method with Bailey, but it did seem to work. Basically I put my finger to my lips and say "Sshh" as you would to a child. To start the training, as soon as he did stop barking I rewarded him while shushing and finger on lips. He does respond well to finger commands, such as a click when we are eating to get him to sit, a raised finger to say "wait" for a treat, and touch the treat to say "go on then", so whether he picked up the finger on lips because of the other finger commands I don't know. Hopefully someone who knows how to train a dog properly will be able to help. Good luck.