a group of researchers tested whether wearing cologne changed men’s behaviors in ways that made them more attractive to women. thirty-five men were randomly assigned to apply a scented or unscented body spray and then to introduce themselves to a hypothetical "attractive woman" while being filmed. a panel of women were then asked to watch the videos and judge the men’s attractiveness. they were not told that the men had been given body spray of any kind, and they were unable to smell the men.