Discourage him from biting or nipping. Instead of scolding him, a great way to put off your mouthy canine is to pretend that you're in great pain when he's biting or nipping you. He'll be so surprised he's likely to stop immediately. If this doesn't work, try trading a chew toy for your hand or pant leg. The swap trick also works when he's into your favorite shoes. He'll prefer a toy or bone anyway. If all else fails, break up the biting behavior, and then just ignore him.
Even though your puppy may be learning to walk on a leash very nicely, you’re likely to run into some issues as he gets older, goes new places, and experiences new distractions. You’ll want to teach him loose-leash walking, because it’s much more pleasant for you both, and also then he can pass his Canine Good Citizen test. Here are a few tips on what to do if you’re having trouble with leash training, courtesy of the AKC GoodDog! Helpline.
Never leave a puppy in his crate all day; he needs several bathroom breaks, as well as play and feeding times. Even though he won’t want to soil his sleeping area, if he is in there for extremely long stretches, he just might. (He can’t help it!) And if he does, it is because his owner has neglected his responsibility, not because the dog has misbehaved.
Teach him to come when called. Come Jasper! Good boy! Teaching him to come is the command to be mastered first and foremost. And since he'll be coming to you, your alpha status will be reinforced. Get on his level and tell him to come using his name. When he does, make a big deal using positive reinforcement. Then try it when he's busy with something interesting. You'll really see the benefits of perfecting this command early as he gets older.
Reinforcement can be anything your dog likes. Most people use small pieces of a “high value” food for training treats — something special — such as dried liver or even just their kibble. Lavish praise or the chance to play with a favorite toy can also be used as a reward. Dogs must be taught to like praise. If you give the dog a treat while saying “Good dog!” in a happy voice, he will learn that praise is a good thing and can be a reward. Some dogs also enjoy petting. Food is often the most convenient way to reinforce behavior.
You can also lure a down from a sit or stand by holding a treat in your hand to the dog’s nose and slowly bringing it to the floor. Give the treat when the dog’s elbows touch the floor to start. After a few practices, begin bringing your empty hand to the floor and giving the treat AFTER he lies down. When he can reliably follow your hand signal, begin saying “down” as you move your hand.