While it may not happen overnight, now is the perfect opportunity to start obedience training with your pup to stop biting and nipping early on. Teach your puppy that biting hurts by exclaiming, “Ouch,” when they nip and praise them when they stop. Thwart biting with plenty of appropriate items they can chew on (not your fingers!) such as puppy-safe bones, frozen treats, and other toys.