Rules
The hidden and visible rules
Every community runs on rules, but only some of them are written down.
Formal rules (laws, contracts, codes of conduct) are easy to find if you know to look for them. Informal rules are harder: they live in behavior, in the discomfort when someone does the wrong thing, in the things that go unsaid because everyone already knows. In any new environment, understanding both layers is essential, because the informal rules often carry more social weight than the official ones.
Cultures also differ in their relationship to rules as such. In some settings, a rule is a rule and following it is non-negotiable, regardless of context. In others, rules are understood as guidelines that reasonable people adjust based on circumstances. Neither approach is inherently more ethical, but they can produce deep mutual frustration when people with different orientations have to work or live together.