Learn it perfectly. When humans try to demonstrate it to their human guests, stare blankly back at the humans. Pretend you have no idea what they are talking about. Attempting to bribe you with cookies is usually an added bonus. Make humans be patient.
Patience is a virtue.
Act as though the spot you choose to go pee will ultimately decide the fate of the world. Draw attention to YOUR humans. Take your time and make sure everyone watches. This works particularly well if YOUR humans have forgotten to bring a plastic bag. When out for a walk, alternate between choking, coughing, tripping and whining everytime a strange human walks by.