Supposedly, there have been studies indicating that gaydar is real:
https://en.wikipedia.org/wiki/Gaydar
Note the links at the bottom of the article if you are interested in the specific studies discussed. I am sure that there are other things online about this issue.
I know that when I look at people, I typically don't think about their sexual orientation at all, and if someone asks me to make a guess about someone, I typically have a very hard time guessing. But some other people seem to be able to guess with some degree of accuracy. Of course, it is doubtful if anyone would always guess right. But I have not bothered with reading the studies, as it is of little importance to me. I don't care at all if a man I meet is gay or straight, as I have no sexual interest in him regardless, and in the case of women, since I am happily married and plan on staying that way, there is only a theoretical interest. But even with women, what would matter is whether they are interested in me or not, not why one in particular is not interested in me. So I don't need to distinguish between gay and straight for women either.
https://en.wikipedia.org/wiki/Gaydar
Note the links at the bottom of the article if you are interested in the specific studies discussed. I am sure that there are other things online about this issue.
I know that when I look at people, I typically don't think about their sexual orientation at all, and if someone asks me to make a guess about someone, I typically have a very hard time guessing. But some other people seem to be able to guess with some degree of accuracy. Of course, it is doubtful if anyone would always guess right. But I have not bothered with reading the studies, as it is of little importance to me. I don't care at all if a man I meet is gay or straight, as I have no sexual interest in him regardless, and in the case of women, since I am happily married and plan on staying that way, there is only a theoretical interest. But even with women, what would matter is whether they are interested in me or not, not why one in particular is not interested in me. So I don't need to distinguish between gay and straight for women either.
"A wise man ... proportions his belief to the evidence."
— David Hume, An Enquiry Concerning Human Understanding, Section X, Part I.
