Grizzled Oldtimer vs. Shih Tzu Puppy: Who will blink?

Magnus, a 14-week old male Shih Tzu (mixed breed) plays some sort of a bluffing game with Tatang, a grizzled oldtimer. 

Magnus has just learned to "SHAKE" and Tatang is tempting the young dog to do it even without a direct command and active prodding. Let's see who'll prevail in this bluffing contest. 

Filmed with an Osmo Action in 2.7K/29.97p at northern Philippines on January 25, 2020.