What is the meaning behind mime half painted faces?

Mime artists often paint only half of their faces to symbolize the duality of human emotions and the contrast between one's inner feelings and outward expressions. This artistic choice allows them to convey a range of emotions through physical movement and gestures while emphasizing the idea that people often hide their true selves behind a façade. The half-painted face serves as a visual representation of the struggle between authenticity and performance in everyday life.