It gives my friends the indication that I am into that guy. For example, I am at a restaurant with my friends and a guy walks in and I shift my focus onto that guy. If you are having a conversation and a person walks into the room and he pays very close attention to said person then it would mean into to that gender.
You know what they say the eyes is the window to the soul. Homosexuals have a twinkle in their eyes. If there is a guy that you suspect is gay pay attention to his eyes. Then the likely hood is that he maybe gay. So If there is a guy that you think might be gay than if his friend group is made up of 85% of females. Does that consider me gay? Supposedly it does. I as a homosexual I have a lot of friends who are females with a small handful of guy friends. They also tend to wear pink on Wednesdays. Does he look like a model in a magazine? Does he walk better in high heel than you? Can you see bare skin above the knee? Does he constantly have a clean look? Then he maybe gay.