Over his career, French behavioral scientist Nicolas Gueguen says he's carried out hundreds of little experiments in "courtship behavior" — as in, what a guy or gal has to do to catch the eye of a potential paramour. Gueguen told Science of Us via email that he was never able to use any of this very important scientific research to his own benefit, however, as he was already married when he began studying this area of human behavior. C'est la vie!
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