Let's say that in less technical language

Locking eyeball to eyeball with the attractive stranger helps put the match to the flame of love. Why does eye contact have such fiery consequences? Anthropologist Helen Fisher says it is basic animal instinct. Direct eye contact triggers "a primitive part of the human brain, calling forth one of two basic emotions—approach or retreat." Unrelenting eye contact creates a highly emotional state similar to fear. When you look directly and potently into someone's eyes, his or her body produces chemicals like phenylethylamine, or PEA, that jolts the sensation of being in love. Thus, making strong, almost threateningly intense eye contact with your Quarry is one of the first steps in making him or her fall in love with you. People look lingeringly at sights they like and quickly avert their eyes from those they don't. We enjoy gazing for long, lazy hours into a cozy fire, yet our hands jerk up to shield our eyes from an atrocious movie scene. It's the same when looking at people. We gaze lovingly at our lovers, yet avert our eyes from unpleasant, ugly, or dull people. When someone bores us, the first part of our body to escape is our eyes. I'm acutely aware of this phenomenon during my speeches. Whenever I drone on too long about a particular point, audience members bury their noses in their notes. Inspecting their manicures takes on prime importance. Some even nod off. When I get back on track, their eyes flutter up like butterflies returning to the sunshine after a rainstorm.

Another, almost opposite, factor that blocks good eye contact is shyness. The more someone overwhelms us, the more we avoid his or her eyes. Very low-ranking employees often avert their gaze from the big boss. If we meet someone extraordinarily handsome, beautiful, or accomplished, we tend to do the same. In my seminars, I strive to make eye contact with everyone in the audience. However, if there is an especially handsome man in the sea of faces, I often find myself avoiding his gaze. I look into the eyes of everybody but him. Then, realizing the folly of my ways, I force myself to look into the eyes of Very Attractive Male, and BLAM! My heart skips a beat. I sometimes lose my train of thought. I stutter. Powerful stuff, this eye contact.