As a follow-up, you need to evaluate your reaction to his biting. How did you react the first time? How do you react now? And how does he act after biting someone? If you scold him, what is his reaction? When Biting is out of FUN Biting out of fun is not unusual for puppies. They may start out jumping around and grabbing at your hand or a toy and then accidentally bite your hand. Or, they may be chewing on something and accidentally bite you when you try to take it away. The dog may see this as part of a game or as a way to get attention, especially if it happens a couple of times within a week. He then may try biting to see if he gets attention or gets you to play. If you pay him attention or play with him, he will be training you instead of you training him! It is important that you deal with the biting immediately each time it happens – even when it is an accident. Learn the correct method of training your dog not to bite at membership site. When Biting is out of FEAR If your dog bites in new situations or around new people, he may feel fearful and anxious. He may appear nervous in a variety of situations. This may be related to his breeding, his personality, or his need for more socialization. A dog who bites in these situations will not get better by isolating him or ignoring him. You need to learn to fully socialize him using the methods and tips at the membership site. Socialization starts when a puppy is still with his mother and continues throughout his life. Take your dog to a park that does not have a lot of people or dogs and let him walk around on a leash and smell and look without being approached or trapped. Once he gets used to that, take him to a park with more people and dogs and keep him on a leash. Talk to him and praise him when he acts appropriately. Take lots of walks. If you do not feel like your dog can be trusted around other people or dogs, you will need to muzzle him when he is in public. There are many different types of muzzles available. If he is wearing a muzzle, it will also help other people know not to approach him or let their dogs approach him which will help him feel less threatened. If your dog's tail is low or tucked between his hind legs, if he is panting excessively, pacing or even whining, take these signs to be an indication that he is nervous and move him out of the situation immediately. Do not ignore such symptoms. If you do, you or any other person around him may end up being bitten. Get HELP for controlling your dog's biting If your dog bites, even once, you need to let him know that biting will not be tolerated. When you feel your dog’s teeth on your skin, gently move his mouth off and firmly say 'NO'. If he actually bites you, make a sharp, high-pitched sound like ‘Ow’ or ‘Ouch’ and then firmly, in a low voice say  'NO'. Just after the incident, leave your dog alone for a few minutes (3-5 minutes) and refuse to look at him, touch him, or speak to him. If your dog bites while playing, respond with ‘no bite’, stop playing immediately and do something calmer with him. If you have to tell him 'NO'.several times, try using something to startle him like a shaker can of pennies when you give him the ‘ 'NO' bite command. Remember: Do not yell, punish or hit your dog; instead use positive reinforcement like praise or a treat when you have had an extended play time without biting or he is in a new situation and acts appropriately. Once he realizes he gets more attention when he does not bite, he will forget about biting.