Training your dog to show his teeth is a cute trick that you can use for fun and to show off his talents. But this is also a trick you can teach your dog when you or he feel threatened. Having your dog show his teeth can either be a beautiful smile or a menacing grimace. You can decide what times you would like your dog to show teeth by the command you give to him. Teach him to smile, show his teeth, or grimace without sound by having him show his teeth.
Just imagine the laughs, smiles, or even fear your dog can portray just by a simple task like showing his teeth. When you ask your dog to smile in front of others and he shows his teeth, you can expect smiles from your friends as well. Asking your dog to show his teeth by command around other dogs might be intimidating to others.
Training your dog to show his teeth might occur best when you show him what the action looks like and he is rewarded for doing the action. Another way is to catch him in the act during times when he normally shows his teeth, mark the behavior, and reward him as he learns to connect the behavior with the command.
This positive reinforcement training rewards him for learning while commands give him the incentive to practice and keep learning.
This is a trick you can use to get your pup to smile or grimace. Dogs at any age can learn to show their teeth though it might a bit easier to teach a puppy than an older dog. The key at any age will be repetition and rewards.