How do Han Chinese demonstrate their politeness?
They call each other “Superior Zhang (老张)”, “Boss Zhang”, “Manager Zhang”, “Mayor Zhang”, “Handsome man Zhang”, “Beauty Zhang”, “Superior brother Zhang”, “Inferior brother Zhang”, and “Inferior Zhang (小张)”, because that shows ranking difference, and they think it polite.
They rarely call others, “Hi Mike” or “Hi Mary”, because that can’t show who is the superior or who is the inferior, and Han Chinese think it rude.
Han Chinese are concerned about ranking difference, but they aren’t concerned about equality or friendliness.
Discussions on the Han Chinese Mental Illness 