In given light conditions, the pupils will dilate or constrict as the person’s attitude and mood change from positive to negative and vice versa. When someone becomes excited, his pupils can dilate up to four times their normal size. Conversely, an angry, negative mood causes the pupils to contract to what are commonly known as ‘beady little eyes’ or “snake eyes.” The eyes are used a lot in courtship; women use eye make-up to emphasize their eye display. If a woman loves a man, she will dilate her pupils at him and he will decode this signal correctly, without knowing he does so. For this reason, romantic encounters are often arranged in dimly lit places that cause the pupils to dilate.
Young lovers who look deeply into each other’s eyes unknowingly look for pupil dilation; each becomes excited by the dilation of the other’s pupils. Research has shown that when pornographic films are shown to men, their pupils can dilate to almost three times the normal size. When the same films are shown to women their pupil dilation is even greater than that recorded by the men, which raises some doubt about the statement that women are less stimulated by pornography than men.
Young babies and children have larger pupils than adults and their pupils constantly dilate when adults are present in an attempt to look as appealing as possible and thus receive constant attention.
Tests conducted with expert card player’s show that fewer games were won by the experts when their opponents wore dark glasses. For example, if an opponent were dealt four aces in a game of poker, his rapid pupil dilation would be unconsciously detected by the expert, who would get a feeling that he should not bet on the next hand. Dark glasses worn by the opponents eliminated pupil signals and as a result the experts won fewer games than usual.
The ancient Chinese gem traders who watched for the pupil dilation of their buyers when negotiating prices centuries ago used pupil watching. Prostitutes put drops of belladonna in their eyes to dilate their pupils and to make themselves appear more desirable. The late Aristotle Onassis was noted for wearing dark glasses when negotiating business deals so that his eyes would not reveal his thoughts.
An old cliché says, “Look a person in the eye when you talk to him.” When you are communicating or negotiating with others, practice “looking them in the pupil” and let the pupils tell you their real feelings.
Check out part two here to learn more about gaze behavior and how to control a person’s gaze.
Image courtesy of www.social-dynamix.com.