I have a beautiful red nose girl — she’s 4 now. I just consistantly used “NO BITE”, and ignored her when she did — turning my back to her. She did it until around a year old, no problems now — and she’s very, very well-behaved. I think obedience training is very helpful (besides the obvious, it truly does help with bonding), I started as soon as I could, after socializing her until she was old enough to join puppy class. I cannot believe what a good girl she is, I really appreciate her every day 🙂 Just be patient and consistant.