Instead of scolding your new pet, a great way to discourage your mouthy canine is to pretend you’re in a lot of pain when they bite or nip you — a sharp, loud yell should work. Most dogs are so surprised that they stop immediately.  If verbal cues don’t work, try trading a chew toy for your hand or pant leg. This swap trick can also work when a puppy discovers the joys of chewing on your favorite shoes. They tend to prefer a toy or bone anyway. If all else fails, interrupt the biting behavior and respond by ignoring them.