In addition to your dog's love and devotion, you'll receive the admiration of friends whose dogs don't listen to them, and you won't have to put up with such nuisance behaviors as chewing on shoes and pillows. Have him sit and wait for your okay before he leaves the house and gets into or out of the car. Eat before you feed the dog, and if you have more than one dog, place your dogs' food bowls on the floor in order of their dominance. Have him sit or lie down before he gets a treat or a meal. Remember your body language.
Dogs are most sensitive to communication via eye contact, body language and tone of voice.
So to assert your alpha position, keep your body higher than your dog's, and pat your dog on top of his head, not under the chin. Smile and make your eye contact soft and loving. Being alpha means you win. Obedience training helps every behavior problem. Practice obedience exercises at home daily and with a group weekly.