Okay to clarify -
YES - you NEED to make sure your dog gets used to being touched and handled at ALL parts of their body - what I am talking about is if the puppy is rambunctious and mouthing the last place you touch them is the snout.
When it is "SCHOOL" or down time - of COURSE stroke the face, nose, muzzle and get them used to your opening their mouth for checking teeth, tongues, giving medications if necessary and not fearing your hands.
But I still maintain that if they are biting, mouthing, nipping, playing with open mouth and you stick your hand near their mouth or try to SHUT their snout without saying NO BITE -
you are encouraging the mouthing behavior.
And like with DF - Pootie will be laying all by herself and he STARTS to pet her at her face, she mouths, then he gets angry when she bites - I suggest petting her belly, back, sparkle fanny FIRST, and work your way up to the mouth when she is calm. If she starts to bite - say no bite and REMOVE your hand don't continue to pet her face and encourage mouthing and nipping.
Mustang - I know what you meant about Taz.
True story - DF had just gotten his Pit Bull - he was 8 weeks old. He took him to the shop and the puppy was laying by himself on a dog bed. A man walked in and said "Oh is that a Pit Bull pup?" DF said "Yes it is, just got him." and the man walks over and took our pups head in his hands and shook back and forth, back and forth and then in a baby voice said 'you like that? you like that?" so DF walked behind him and grabbed the boy by both ears and shook HIS head and in the same mock baby voice said 'you like that? you like that?" the man stood there like WT? and DF said - if you don't like it done to YOU - HOW do you suppose he likes it at his size?"
I recently had to do the same with a young man at work. He extended his arm to her nose over and over, making almost wiping gestures. When she growled and barked he reached out and said NO and then popped her in the side of the face. I calmly as I could got up and pawed at him, when he didn't understand WHY I kept reaching for his arm I reached out and slapped his arm. He said WT? and I said - IF YOU didn't like it on your arm at 6'4" and 185 lbs, 28 years old - I can guarantee she didn't like being bothered in her face at 14 weeks, 10 lbs, and 12" high.....and if you ever EVER pop my puppy again - we are going to have serious problems.....you started it - you got what you deserved. Pet her butt, her shoulders her back - her belly but DO NOT start with her face and shaking her head or teasing her and NOT expect her to return the PLAY."
Thats the 'stuff" I was refering to. If you encourage it - you are going to get bit, and it's a hard behavior to correct if ever. If the puppy is doing it - and your first reaction is to put YOUR hand to HIS mouth? YOU are encouraging it. When everyone is calm - and no play is emminent? SURE pet away - but pet the back first - then work up to the nose - if the pup opens his mouth - I would pet something else and come back to that as a soothing /calming technique. I could be wrong, I just know if I am excited and talking and you stick your fingers in my face - I'm gonna bite ya.
And have.