Things I think when an attractive man smiles at me:

(apart from oh my God, an attractive man just smiled at me)

Just because I look away, quickly, doesn’t mean I’m not interested.
Just because I seem arrogant doesn’t mean I don’t have zero self-confidence.
Just because I manage to look back at you doesn’t mean I’m capable of making the first move.
Just because I don’t say anything doesn’t mean I don’t want to.
Just because I’m holding her hand doesn’t mean she’s my girlfriend.
Just because I haven’t shaved this morning doesn’t mean I don’t suddenly wish I had.
Just because I know I’m never going to properly fall in love doesn’t mean I don’t want to.
Just because you’re smiling at me and I’m smiling back at you doesn’t mean we’re ever going to see each other again, does it?

And then there’s the one I never think at the time:

Just because a stranger smiles at you doesn’t mean they’re attracted to you.