Life, liberty and the pursuit of bootywhang:
According to scientists in Austria, if you're male and a woman smiles at and
appears to flirt with you, it doesn't mean that she's interested.
Women show
nonverbal signals of interest, such as smiling and flicking hair,
to men they're not sexually interested in, in order to get them to talk and
reveal their personalities, and/or to get on their good side. And men,
programmed by their genes to assume that women are sexually interested where in
doubt, fall for it.