Those brows on your face have a language of their own. When the person you’re flirting with says something surprising, give them an exaggerated raising-of-both eyebrows gesture, followed by a rapid lowering of them. Marilyn Monroe was a master of it. It looks similar to the face women make when they are pleasured in bed. Psychology Today’s Deborah Lott says it’s one of the most universal nonverbal behaviors used by women.