cash does the same thing!!!!
He knows keys and grabbing a purse he also knows when you lean forward and do that the pat on your spouses leg as a sign of well are you ready.
The problem is cash attacks us as we leave, biting and barking and attempting to rip apart his toys.
Cash also knows, cookie, bed, dad, mom, chopper, grandpa, potty, almost there and a bunch of others, but he wont stay or sit on camand. lol