12 constellation, who is the least likely to speak his mind?

Scorpio's personality is relatively silent, and people who seldom talk always have a hidden cold face, which is mysterious and unpredictable without any fluctuation.

Scorpio is not used to hiding everything in his heart, whether it is happy or sad, one by one. Scorpio seems to see through this treacherous world and feel that people and things around him are false. They don't want their hearts to accept the world. Compassion can make them cheated and hurt. They don't talk about their inner thoughts, but try their best to protect themselves.