Because I personally don’t think that there is such a thing as gay mannerisms. But that question would be for a different section of these boards 
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My question is, name a celebrity who acts gay, but who clearly isn’t. I personally am thinking mostly of males. But you can include females.
I would like to start with Michael Dorn, who played the Klingon Worf on Star Trek: the Next Generation. He did do a convincing Klingon. But I have noticed that out of makeup he does act a little effeminate. Yet he clearly isn’t. (FWIW here is his Wikipedia article.)
Remember no outing. I’m only looking for celebrities who appear to be gay.