Some flirting styles, as defined by psychologists Martha Gross, Isaiah Zimmerman and Stan Hunt:

The Who-Me? Flirt: While not trying to flirt, these people come across as flirtatious. " They convey a great deal of sensuality," notes Hunt. "Their nonverbal interaction is apt to be more dominated by physical and sensual components."

The Constant Flirt: "They need constant reassurance to feel whole," says Gross. "If they do not have that, they feel empty."

Charming Psychopath: Seeks to manipulate by trying to charm. "They gratify the other person by making them feel charming, powerful, attractive," says Hunt. "They usually want sex or money. A type of flirting practiced frequently in Washington bars."

Revenge Flirt: Flirts in retaliation. "They may sense partner has an affair," says Hunt, "and flirt openly to get even."

Provocative Flirt: "Flirts with sexual bravado. She may touch a man on his shoulder, get close enough so he smells her perfume."

The Never Flirt: Flirting is not in their repertoire. "These people are too inhibited and goal-oriented to be playful," says Gross.

Anonymous Flirt: Admires from afar. He or she leaves romantic messages on your phone recorder, notes under your door or flowers on your desk. Such playfulness can be fun if the person eventually reveals themselves. "If not," says Zimmerman, "it's a little bit like a Peeping Tom, a bit sick."