The foundation of successful training is creating good associations with the proper behavior while eliminating negative associations. This requires patience and determination on your part, because instilling proper walking techniques can take weeks or even months. Putting on the harness and going for walks should be fun and rewarding for your dog, so make sure to offer plenty of praise, petting, and treats when your dog behaves well. Above all, never get mad or yell at your dog. This will simply cause it to associate walks with unpleasant interactions with you.