Hmm. I haven’t RTFA yet (I must have been having a Slashdot moment), but according to the abstract
Rather, gender differences were captured by a relative perceptual insensitivity among men. Just as in previous studies, men were more likely than women to misperceive friendliness as sexual interest, but they also were quite likely to misperceive sexual interest as friendliness.
Perhaps the solution, to paraphrase Roosevelt, is to speak slowly and carry a two-by-four.