海螺人
Hǎiluó rén
海螺人 refers to those people look elegant, obedient and quiet, and they look just like ordinary people, but as long as you get close, try to listen to their voices, you can see that they are actually people with a great personality, has cultured opinions.
Interestingly,
海螺 actually means conch.
人 just means person.
In a way, just like a conch where they look like any other shells (ie ordinary) but when you really listen to them, you will realise that you can hear the waves and the ocean. Similarly, 海螺人 are suppose to be the same. They are ordinary but once you listen to them, you will find yourself being impressed with their thoughts and opinions on matters and issues.