How can a guy know If he’s Attractive/Unattractive to the opposite sex?

The question explains itself and before you say it’s how they talk to you..

listen I don’t talk to them and you don’t need to point this out.

🫵 It’s either you have a relevant opinion or don’t comment.

Updates
+1 y
I guess I have to point it out again, I don’t talk to them so flirting, talking, touching isn’t the answer to this question.
Thank you
How can a guy know If he’s Attractive/Unattractive to the opposite sex?
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