Gay Men's Preferences for "Top" Vs. "Bottom" Can Be Judged By Their Face

It’s been known for a while that it takes less than a second for people to use their internal “gaydar” to decide if they think a man is homosexual or heterosexual, and such snap judgements tend to be right. But can facial differences be used to distinguish between different types of gay men — specifically, those who define themselves as “tops” versus “bottoms”?