How can you tell whether you are naturally attractive to guys?

two guys that are the definition of my type seemed really nervous around me. But also that they wanted to leave. I was also very nervous as well so I’m thinking maybe they were embarrassed because they knew I liked them? Not because it was mutual? It just feels too good to be true that they both liked me. But they were both definitely nervous. I swear I saw one of them shaking and the other blushed once. I can’t be imagining that? It just feels too good to be true
How can you tell whether you are naturally attractive to guys?
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