Greetings differ by age and gender. Respectful greetings for visitors?
What is a respectful way of greeting?
The most respectful greetings are formal ones like "hello," or time-related greetings like "good morning" or "good evening." To make it even more respectful, add the listener's formal title afterwards, like "hello, Mr. or Mrs. ______," or even "hello, sir or ma'am."