[People kept saying things were free, but it was hard to believe. It wouldn't be the first time someone told him something was free, only to run off and leave him to foot the money for stuff. Not that he thought everyone was like that, he had just grown to be very, very wary of statements like that.]
[But, this woman sounded nice... and she probably wouldn't have a reason to do something like that... but he still wanted to find a way to pay her back somehow. Just smiling felt like a bit of a raw deal for her, but if it was what she wanted...]
I-I'll remember that... [And he awkwardly tries to put a smile on his face.] thanks again.