My gaydar is pretty good. Especially for men. Perfect, no, but very good.
Anyone flaming, or lisping, is too obvious. You don’t need gaydar for that. But my gaydar has to do with hair and smile. I can’t pinpoint it. The very wide smile really sets off my dar.
I’m not as good at sensing lesbians unless they look pretty butch.
My jewdar is quite good: only a few have ever slipped through. Funny thing: Jews growing up in America have pretty good jewdar. My Israeli friend is clueless. She simply can’t tell. I had so much fun sitting with her in public and playing Guess Who is Jewish, and dying laughing at how wrong she was. I guess in Israel they assume everyone is Jewish, and they don’t distinguish.
Jewdar: totally useless re greeks and celts, as they are closely related (likewise arabs).