22 year old gay male here--I chose right, left, right, right. For the women, I thought the right faces looked happier and more engaging. I was pretty confident in my answers except for #2, the first male in the series. I think the transparent hair across the forehead was skewing my reaction.

If heterosexual males and females preferred the left images far more often, it's strange that I would have chosen the right for both. I wonder if these results are typical for my subgroup, and if so, why?

Gotta love having hardwired sexual preferences for a non-reproductive orientation! It's like asking whether you prefer carburetors or fuel injection on your bumper car. :)