To discourage your dog from biting your hands:
1. Turn biting into an off switch
Often, we inadvertently reinforce mouthiness by responding with noises and attention that your pup will interpret as rewarding behavior. Next time your dog gets mouthy and starts biting your hands, immediately disengage with her. Basically ignore her until she stops attempting to be mouthy. When this happens, give her a treat and attention in order to reinforce the non-mouthy behavior.
2. Give good chew toys
If your dog likes toys, give her a good chew toy when you arrive home. Himalayan chews are great for big chewers. Frozen carrots, ice cubes, and pig’s ears are also great alternatives for chew toys. In addition to being fun for your dog, she’ll start to associate your arrival with this good chewing behavior. Monitor chewing whenever possible, especially if your dog is chewing anything where a piece can possibly break off and get lodged in their throat or digestive tract.
3. Play games where your dog can use her mouth appropriately
Play non-contact activities with your pup, such as fetch or tug-of-war. This could mean substituting a chew toy for a ball or tug-of-war rope. Have the item you choose readily available so you can get in front of the mouthy behavior by providing a great alternative. If your dog starts to get mouthy, immediately redirect her to the tug toy. Ideally, she’ll start to anticipate and look for a toy when she feels like mouthing.