Open The Fridge (1) Put a smelly treat inside a dish towel and tie the towl to the door handle. Wiggle the towl and reward your dog for touching it. Wait for him to put his mouth on the towl, say “good!” and give him a treat. Once your dog is biting the towl, reward him only when he pulls it. In the final stage, use “open” as your cue for him to pull hard and open the door.