Hi Hugs: There you are, smile and the world smiles back at ya! If you think she smiled because you were smiling - even though it was the music - I wonder if you had been listening to the news and frowning if she would have felt the negative wave and maybe wouldn't have smiled.
I was working out at the gym, and smiled when I was amusing myself listening to some music. Someone walked into my view and smiled at me, maybe thinking I was smiling at her. On a bad day, I would have thought it was the big pimple on my nose which makes me look like Rudolph the Red-nosed reindeer. It occurred to me much later that she might not have been looking at me.
As I walked away, I realized years ago that my CBT homework sometimes involvied influencing others and seeing their reaction.
I felt better since I connected with someone, although I didn't intend to.