Touch
How people touch each other while talking
A hand on the shoulder, a cheek kiss, or a handshake each carry a specific social meaning, and that meaning changes completely depending on where you are.
Touch during conversation and greeting is one of the most immediate and visceral ways culture operates on the body. It signals warmth, respect, status, intimacy, or formality, but which gesture signals which meaning is not universal. A greeting that feels natural and friendly in one context can feel invasive or cold in another.
Touch norms are also shaped by gender, age, and relationship. The same contact that is normal between friends may be inappropriate between strangers, or between a man and a woman, or between a senior and a junior in a workplace. People navigating cross-cultural settings often find touch the hardest norm to calibrate because it happens quickly, in the body, before thinking catches up.