A convention, or custom, refers to a set of accepted standards, social norms, or criteria that guide human behavior and interaction. From the handshake in Western societies to the wai in Thailand, traditions reflect culturally specific practices that change over time. Authors like Adam Smith emphasized custom's role in shaping ideas of beauty, while Lord Kames differentiated it from habit, highlighting its impact on emotional reactions.
Nathaniel Hawthorne compared custom to an immovable wall, illustrating its power to reinforce social reality. These viewpoints reveal how conventions both structure and are influenced by human experience, acting as frameworks for collective identity and personal behavior.