When someone feels happy, they often smile by turning up the edges of their mouth. Their eyes may look wide and bright.

When someone feels sad, their face may look still or droopy and they may even have tears in their eyes.

When someone feels angry, they may frown and scrunch up their face. Their cheeks may also turn red.

When someone is scared, their eyes may go wide open and their mouth might open wide too. Some people also sweat more.