V.T.
Puppies biting is normal. They are teething. My puppy did it for a few months until all his puppy teeth fell out. He was only allowed to play with us or sit on our laps if he had a toy in his mouth to avoid the biting. It took about 2 days and he got it. My dog sits and stares at us all the time. Mostly it's either for attention that he wants, or he is staring at us eating. As for the jumping, the puppy shouldn't be jumping for food or treats. If the puppy jumps, say no, and wait for the dog to sit before giving the treat. We went to puppy class at PetSmart. It was more training for us than for the dog, but like kids, dogs need consistancy and reimforcements.