should/shouldn't 提出建议 — 英语阅读题

阅读短文，回答问题。 Alice and Ben are classmates. Alice talks loudly in the library, so Ben says, "You shouldn't talk loudly here. You should be quiet." Later, Ben sees Tom push a little boy in the playground. Ben is not happy. He says, "You shouldn't push others. It is not polite. You should say sorry to him." Tom listens and says sorry to the little boy. The little boy smiles and they play together. Alice and Ben are good friends. They often help each other and share their toys. They know how to get along well with others. Question: What should Tom do to the little boy? Please write one sentence with "should".