What should you say in English if someone sneezes?.

In English-speaking cultures, the polite response when someone sneezes is "Bless you" or "God bless you." This is a social courtesy with historical roots in the belief that a sneeze could expel evil spirits or that the heart briefly stops during a sneeze. "Thank you" is what the sneezer typically says in response, "Excuse me" is said when you yourself sneeze, and "Sorry" is not the standard response.