Contrary to widespread belief, only two very specific types of people flirt: those who are single and those who are married. Single people flirt because, well, they’re single and therefore nobody is really contractually obliged to talk to them, sleep with them or scratch that difficult-to-reach part of the back. But married people, they’re a tougher puzzle. They’ve found themselves a suitable–maybe even superior–mate, had a bit of productive fun with the old gametes and ensured that at least some of their genes are carried into the next generation. They’ve done their duty, evolutionarily speaking. Their genome will survive. Yay them. So for Pete’s sake, why do they persist with the game? And before you claim, whether single or married, that you never flirt, bear in mind that it’s not just talk we’re dealing with here. It’s gestures, stance, eye movement. Notice how you lean forward to the person you’re talking to and tip up your heels? Notice the quick little eyebrow raise you make, the sidelong glance coupled with the weak smile you give, the slightly sustained gaze you offer? If you’re a woman, do you feel your head tilting to the side a bit, exposing either your soft, sensuous neck or, looking at it another way, your jugular? If you’re a guy, are you keeping your body in an open, come-on-attack-me position, arms positioned to draw the eye to your impressive lower abdomen? Scientists call all these little acts “contact-readiness” cues, because they indicate, nonverbally, that you’re prepared for physical engagement. These cues are a crucial part of what’s known in human-ethology circles as the “heterosexual relationship initiation process” and elsewhere, often on the selfsame college campuses, as “coming on to someone.” In primal terms, they’re physical signals that you don’t intend to dominate, nor do you intend to flee–both useful messages potential mates need to send before they can proceed to that awkward talking phase. They’re the opening line, so to speak, for the opening line. One of the reasons we flirt in this way is that we can’t help it. We’re programmed to do it, whether by biology or culture. The biology part has been investigated by any number of researchers. Ethologist Irenaus Eibl Eibesfeldt, then of the Max Planck Institute in Germany, filmed African tribes in the 1960s and found that the women there did the exact same prolonged stare followed by a head tilt away with a little smile that he saw in America.
