A lot of great advice posted above.
Relax, enjoy your puppy, and make training an enjoyable experience for both of you. If you are anxious about progress, or assume the role of a harsh drill sergeant in boot camp, your pup will probably be anxious, overly excited, unfocused, and maybe lacking in trust.
I don't subscribe to the dominance school of training. You can still be in charge while allowing your dog to eat before you or pass through a doorway before you. My Yorkies have taught me the power of positive reinforcement training.
Biting -- that is standard teething puppy. There are so many methods to deal with biting. Make sure he has enough safe chew toys. If he bites, put your hand flat up to his face and say "no bite" assertively, but not angrily or aggressively. Another one is to fold your arms/hand across your chest and say "ouch." |