Hi LeeAnn, when a puppy is very excitable, its best to reduce the physical petting for a while. What kinds of ways are you interacting with the puppy? It's a good idea to communicate with your puppy by teaching him how to earn treats from you. Make a list of things that you'd like to teach your puppy to do. They could be simple things like keeping all his paws on the floor, or looking at your face, or sitting. Choose a marker word (like 'YES) to tell your puppy you like those things, and use that word when he does them, then immediately after using the word drop a treat on the floor for the puppy. Once you have taught your puppy to earn treats by changing his behavior, you can start to teach him to accept petting and being handled, without biting.