If they send anything with a kissy face emoji, it's a solid indicator that they're flirting. Fran Greene, a registered clinical social worker and author of The Secret Rules of Flirting, concurs with Hoffman. "Emojis are absolutely a signal for anything that seems nice and passionate," she tells Elite Daily. "So if you see a kissy-face emoji on someone's message, that's a good sign that they really want to get to know you." In other words, a smiley face is simply a polite way of showing interest without being overbearing or creepy. It's not an indication of your personality type or anything else other than a simple expression of emotion. That being said, emojis are a great tool for expressing yourself online so there's no harm in using them once in a while!