Societal norms are the unwritten rules and expectations that guide behavior within a community or society. These norms help individuals understand what is considered acceptable or unacceptable in various situations, influencing everything from manners to dress codes. They can vary widely between different cultures and groups, shaping how people interact with one another. These norms are often reinforced through socialization, where individuals learn from family, friends, and media. For example, norms around greeting someone may dictate that a handshake is appropriate in some cultures, while a bow is preferred in others. Understanding these norms is essential for effective communication and social cohesion.