Which term describes a social code focusing on human interactions?

The term that best describes a social code focusing on human interactions is etiquette. Etiquette refers to the accepted traditional forms, manners, and ceremonies that govern social behavior in various contexts. It encompasses the norms and practices that societies consider appropriate, guiding individuals in their interactions with others. This can include behavioral expectations related to communication, dining, dress, and general conduct in social situations.

Ethics, on the other hand, involves principles that govern a person's behavior or the conducting of an activity, often related to what is considered right and wrong on a broader philosophical level. Morality is also related to concepts of right and wrong but is more tied to personal beliefs and values rather than social norms. Legalism refers to a strict adherence to the law or rules, often in a legal or bureaucratic context, rather than social conduct or interactions.

Thus, etiquette focuses specifically on the nuances of how individuals relate to one another in social settings, making it the most appropriate term for describing a social code centered on human interactions.