First, teach the release word. Choose which word you will use, such as “OK” or “free.” Stand with your puppy in a sit or a stand, toss a treat on the floor, and say your word as he steps forward to get the treat. Repeat this a couple of times until you can say the word first and then toss the treat AFTER he begins to move. This teaches the dog that the release cue means to move your feet.
Next, drop a treat on the floor near you. As soon as your puppy finishes the treat on the ground, say his name again. When he looks up, give him another treat. Repeat this a couple of times until you can begin tossing the treat a little further away, and he can turn around to face you when you say his name. Avoid repeating your puppy’s name; saying it too often when he doesn’t respond makes it easier for him to ignore it. Instead, move closer to your puppy and go back to a step where he can be successful at responding to his name the first time.
Any area that the pup has access to must be kept clear and clean. Put out of puppy's reach anything you don't want him to chew or destroy. Do not allow your puppy to have unsupervised access to 'unchewables.' Do not chase the puppy in an attempt to take something away. Instead provide puppy with her own toys and teach her how to play with them exclusively.