My audrey was a bite and chewer, especially when losing her puppy teeth. When she would engage in this behavior I would grab her lower jaw, in a non-hurtful way, just making it impossible for her to bite or chew at that moment, and I would very firmly say no. I would also encourage her to not bite, but give kisses. Well, she doesn't bite or chew anymore, but she does lick all the furniture, bedding, and every guest that comes to the house. The positive, what she is doing doesn't hurt anyone, the negative, it can be annoying and a lot of people are bothered by her giving so many kisses.