Gesture: The "OK" (or "Rabbit", if you're making shadow animals on the wall)

What you think it means: "Everything's all good!"
What it means in Greece and Turkey: "You're a man, and you're attracted to other men". We see the letters "O" and "K", while they see a well-dressed dude who moisturizes and is well-versed in the works of Streisand.

And do know this, in America, the Blacks in the entertainment industry are all gays, with a small exception.