You do not need to show 'dominance' or roll him over. He's not stupid, he knows your not a dog so don't start acting like one. You will simply scare him into behaiving and thats not the right way to do it IMO.
Simply say no firmly but don't yell it, stand up and walk away. He will learn that biting means the play and attention stops.
He will be teething like crazy, teach him that he should bite his chew toys. Frozen carrots are great to give teething puppies as they soothe their sore little gums.
__________________ Indy, Benjamin and Malachi   There is no psychiatrist in the world like a puppy licking your face- Ben Williams |