Do's & don'ts
Things you should or shouldn't do
Every culture has a mental list of behaviors that are normal and behaviors that cross a line, and the lists rarely match perfectly across groups.
Some do's and don'ts are widely shared across cultures: not harming others, offering hospitality to guests, keeping agreements. But many are locally specific and learned through experience rather than instruction. These are the norms that trip people up in new environments, not because they are careless but because they did not know there was a line there.
The interesting question is not just what the rules are, but how they are transmitted and enforced. Some are passed down explicitly, others are caught through observation. Some produce sharp social sanctions when broken, others are gently corrected. And some rules that feel absolute within a community are almost invisible to outsiders, which makes the moment of crossing them particularly awkward for everyone.