Belinda saw Mark receive a hug for cleaning his room. She is careful to clean her room because she saw Mark getting a reward for doing it.

Laurie wants to receive a smiley sticker and she knows from reading the rulebook that she will receive one if she behaves herself.

Craig wants to avoid being fired, so he follows the shop rules and does not smoke in the bathroom.

John observes Becky getting spanked for spitting out her carrots. Because he saw his friend get punished, John does not spit out his carrots.