I'm looking for the best way to encourage Ryder who is at 10 weeks, doing very well with everything else (potty-training, sleeping in crate, etc.) except biting. He doesn't seem to grasp the concept that he can't go for my hands/fingers/arms/legs/feet. I say "NO!" every time, in whatever tone I can use, even I go my loudest but it doesn't phase him. BUT if he hears my boyfriend say "NO!" he will stop. Is it because his voice is deeper and more 'force' into it enough that he knows he isn't supposed to do that? I would like to be able to say that to Ryder and he would 'understand'.. is there a way? I've owned different type of dogs, so this is my first Labrador. I've been also saying "Kiss!" every time he licks my face or hand. I will praise, "GOOD BOY!".. I have tried "holding his bottom jaw, holding down where he can't 'bite', I've pinched his cheek, he will yelp/whine, but he will continue, he's quite persistent. I've walked away and left him alone, he will stop, find something else to play with, or sleep. He will either sleep on kitchen floor or go in crate by himself. Also, if I have a toy with me, if he 'bites' my hand, etc. I will say "NO!" and put a toy in his mouth and he will take it and I will say "GOOD TOY!" in a happy tone. Any advice, let me know. I'm willing to hear it out and try something different if you think I need to do so. I do understand that he is still a baby but he is growing up so fast and I feel like I need to start getting this figured out now before he hits 12-16 weeks.