When my dad and mom came and stayed with us, I would see Kumo come near his snacks and my Dad would give him something. So Now after dad has left that habit has now stayed. Kumo will come and stand near his snacks, and then he will sit near his snacks and then finally he lays down in front of the area where we keep his snacks, until someone gives him something.
Kumo can easily just knock them down with his paw and then tear into them, but he will never do this. Trust me I have not disciplined him into this behavior, this is just the way he is.
So, yes, my dad has taught my dog a new behavior that he did not have before.