text: When expressing emotions, certain muscles are tied to certain emotions. In paragraph 3 of the article, the author says, "... your frontalis pars lateralis muscle (above your eyes raises your eyebrows when you're surpised; your orbicularis oris (around your mouth) tightens your lips to show anger" (3). Most of the time when you are surprised, you raise your brows. Also, when you are mad, you make a face, and tighten your lips.