Prosocial behavior is about doing things that help others. It can be different depending on where you are and what's happening. Helping someone can be because you genuinely care about them or because you want something in return. Altruism is when you help someone without expecting anything back. But sometimes, people help others just to benefit themselves. Not all prosocial behavior is driven by altruism, and not all altruistic acts lead to prosocial behavior.