My doggo will normally follow verbal commands for sit/down/shake without much issue. But sometimes he gets too excited or obstinate and doesn't want to do it even if I've said so a few times. At some point, I inadvertently taught him that me putting my hand(s) on my hip(s) is the "Ok, we're not moving on until you listen" gesture.

I make him sit before he eats, and if he isn't sitting, I'll just put my hand on my hip and he immediately plants his ass against the floor, tail wagging. He also knows the question, "Are you begging?" if he's too close to someone eating, and he'll put his head down and slowly skulk away for 5 minutes before sneakily returning to his previous position, hoping for scraps. 😆