2)
Redirect: The moment that your Chihuahua has taken pause, redirect his focus to something that he will find to be pleasing and perhaps even more enjoyable than what he was just chewing on.
You may find that one of two things work best: You can have this be one of your dog’s favorite toys; in other words, one that you are confident he will be happy to be reminded of. Or, have this be a ‘secret’ toy that you have stashed away, but keep close at hand, to offer just for these circumstances.
For dogs that really need encouragement to mouth the offered toy, dabbing it with a touch of peanut butter beforehand often does the trick. And, do not forget that your level of enthusiasm matters.
3)
Praise. While you don’t want to interrupt a dog if he’s happily chewing or playing with an approved toy, if your Chihuahua looks up at you, or takes a short break from chewing the toy, it is a good idea to say, ‘Good, boy/girl!’ in a happy tone and/or give a small pat.