When I was in college, my roommate and I kept a copy of a book called "Art of Seduction," by Robert Greene, in our dorm room that we regarded as gospel. While allowing certain nuances for different types of seducers and seduc-ees or "victims" (Greene's choice of word, not mine), the message of our sacred tome's 468 sugarfree-Redbull-splattered pages could be summarized as follows: Be aloof; be mysterious; don't show all your cards. The art of seduction, in other words, is about "playing hard to get"—that is, delivering, then withholding, affection and attention.

Robert Greene is hardly the first champion of the playing hard-to-get tactic, a strategy legendarily employed by Cleopatra to seduce mighty rulers like Julius Caesar and Mark Antony. It's been discussed, debated and written about in [in]famous books like Ellen Fein and Sherrie Schneider's "The Rules" (which dispenses such pearls of wisdom as: "Men love independent women because they leave them alone.