Thanks for the replies; I learned some important facts, like:
1) You can play the stalking game with not only yorkies, but entirely other species like humans and cats.
2) This is not only a 2 player game, but you can do it with at least 3 at once.
3) There is a variation where the combatants can actually creep up on each other from a distance, all the way up to nose-to-nose before the action begins.
Too Funny