To Be Polite

Don't drop by on a casual visit to friends in Vietnam without phoning or arranging it beforehand: you will embarrass them it their house is untidy, if they are busy, or if they simply don't have any food or drink to offer you...
Don't drop by on a casual visit to friends in Vietnam without phoning or arranging it beforehand: you will embarrass them it their house is untidy, if they are busy, or if they simply don't have any food or drink to offer you. Don't be surprised if your friends have rather humble living quarters: even high level people often live in quite modest circumstances. Do greet older people present first. And don’t forget to say goodbye to them before you leave.