11 Jan The way Wang and Kosinski measure the efficacy of their “AI gaydar” is equivalent to choosing a straight and a gay or lesbian face image, both from  Consider, however, that we can achieve comparable results with trivial models based only on a handful of yes/no survey questions about presentation. Facial features employed by the classifier included both fixed (e.g., nose shape) and transient facial features (e.g., grooming style). Consistent with the prenatal hormone theory of sexual orientation, gay men and women tended to have gender-atypical facial morphology, expression, and grooming styles. Prediction models. Though male homosexuality appears to be evolutionarily paradoxical, phenotypic feminization has been offered as a route for three current models positing a genetic basis for male homosexuality. We tested whether facial feminization is observable in gay men in two studies. In Study 1, using two composite images of gay.