By Bill Hendrick
Cox News Service
Smile at the bartender for a mere 16 milliseconds and chances are he'll juice up your drink with a bit more booze. But be aware that if the pourer shoots you a "microsmile," it's likely to make you thirstier.
Those are among the conclusions of a series of studies by Piotr Winkielman, professor of psychology at the University of California, San Diego, who found that people's consumption behaviors can be altered by subliminal messages - that is, messages they aren't aware they're getting.
In two studies, participants were shown a series of photographs of happy, angry or neutral faces. Consciously, the subjects were aware only of seeing the neutral image.
Immediately afterward, they were asked to rate their moods and "interact" with a beverage by drinking what was offered, asking for more or not taking a sip.
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