According to this study from Tufts...I assume you're just trolling at this point.
InterestingPublished in July's Journal of Experimental Social Psychology, the study claims that people could guess fairly accurately ("better than chance") whether men were gay or straight by looking at photos of their faces
The researchers found that subjects could accurately determine in 50 milliseconds one-twentieth of a second whether the men were gay or straight about 60 percent of the time. Rule says all the subjects were accurate 55 percent to 70 percent of the time.