What does it mean when a dog bows upright?

Generally, the dog's gesture of bowing has an element of coquettishness. The dog is showing goodwill to its owner and hopes that the owner can play with the dog. The meaning of the action needs to be seen. How the owner teaches it usually means thank you or hopes for something. Once the dog makes such an action, it means that the dog wants to get a certain item or means to express gratitude.