There was a time not so long ago when romantically leaning interpersonal communication was accomplished by dedicating a song to your crush on the Blushing smiley face, or by sending them a letter in the mail, or picking up the phone and calling them, or by actually talking to them in person. It was often awkward, but always exciting. Indeed, emojis constitute a wildly nonspecific method of communication that leaves a dangerous amount of room for misinterpretation.
Although science indicates that people who use more emojis have more active sex liveswhich is certainly added incentive for getting your text game on point. Either way, hot is good, as hot is the temperature of romance.
We English speakers, however, are stuck with the one word and a limited amount of emojis representing the one word. Sent almost exclusively by women, kiss lips are indicators of genuine lust and most often mean that the lipsticked lady sending them does, in fact, want to kiss you.
The most blatantly sexed-up emoji in the game, the winky-eyed, tongue-out face is the Blushing smiley face equivalent of cruising Tinder, and used almost exclusively by horndogs and perverts.
In any case, this emoji is a sure sign that your relationship is getting serious.