Common courtesy is a phrase used to describe behavior that is polite, respectful, and considerate. This type of behavior can take many different forms, depending on the situation and cultural context. For example, people might say "good manners" or "etiquette" instead of "common courtesy" when referring to polite behavior at formal events or in specific social situations. Similarly, some synonyms for "common courtesy" include "civility," "decorum," "respectfulness," and "gentleness." Whatever term is used, the concept of common courtesy is an important one for building and maintaining positive relationships with others.