Why do male customers seem quiet and uncomfortable around me?

Men, I’ve noticed that when male customers come in, they tend to be quiet, distant, and seem unimpressed or try to act cool.

I’ve been told I’m attractive, so I’m wondering if there’s something I’m doing that makes them uncomfortable.

I really want them to feel at comfortable. What might be causing this? Any feedback would really help.
Why do male customers seem quiet and uncomfortable around me?
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