get a spray bottle and fill with water. add approx 1 teaspoon (per cup of water) white vinegar. when is misbehaving spray at face but not right in face. learned this from a professional dog trainer. she objected to most negative reinforcement training, but main point with this method is to surprise her. majority of dogs hate this and in time just pointing a spray bottle at her will make her stop. vinegar will not harm in any way, which is one reason it's a common solution. hope this helps. all our dogs are taught that some things not allowed this way. vet encourages use of this method. good luck. remember puppies have very short attention span!! :-D