There appears to be no useful value in prejudging anyone, so I don't think I need this ability. She claimed most people can identify gays and lesbians just by looking at them. I would like to believe that most gays would like to blend into society, be treated equally and live a normal and happy life with someone they love. People of different sexual orientations deserve equal treatment. In most cases, unless one possesses this special gift of gay-dar, it would be difficult to stereotype or identify gays and lesbians by any outward trait.
Gays look and act like everyone else in society.
They shop, go to movies and enjoy the freedom we all enjoy. Both my wife and I have childhood friends who are gay. When we were young, there was no outward appearance that they had sexual orientations other than ours. My college roommate when I was an undergraduate at TCU was gay. I had no clue at the time.