Another way to determine if you're attracted to your own gender, at the least, is to smell your own scent. Yes, it sounds gross, but I've found that when I catch a whiff of my own body's scent (especially when I've been particularly physically active), I get a sudden jolt of sexual energy.

What's more, I hear many others saying the same thing. If you really want to know if you're attracted to men, though, try getting some of those artificial pheromones, and seeing if they affect you.