As a man, if you smile at a girl and she doesn’t smile back what are you thinking?

this (in my opinion) handsome guy at the gym smiled at me and he’s ripped so I thought ah maybe he’s a personal trainer or he’s just trying to encourage me to keep coming then i realised he was just a normal guy getting his workout in and I was thinking shoot, I’m here with my father if I smile back he might not realise this and approach me.

so I just looked at him smiling made eye contact and looked away and now I regret it !!! did he probably think well she’s a b*tch?
As a man, if you smile at a girl and she doesn’t smile back what are you thinking?
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