The fifth personality. According to Chinese-English translation software, the fifth personality English is the fifth personality, which means the fifth personality. Originally, it mainly refers to the masks worn by actors on the stage. Later, psychology borrowed this term to explain that people will change masks according to different social roles on the big stage of life, and these masks are the external manifestations of personality. Personality refers to the inherent tendency and psychological characteristics of individuals to people, things and themselves in social adaptation.