Every time he bites you put your fingers in his mouth behind his teeth and keep his mouth open, not letting him close it for a little while. They cannot stand this and my puppies all quit biting people almost immediately. It doesn't hurt them either, just very uncomfortable. It works!!!
puppy toys. This is a puppies way of teething. When they chew on something it feels good to them. As long as it plenty of toys it'll help. Expect it to chew for a while and if that doesn' stop it, take it a step further with bitter apple. Bitter apple is a substance that you can put anywhere and when the dog bites it taste horrible, thus making Fido learn his lesson.