<pulling up to a drive through window>
Teller: (in a singsong voice) Hello! That'll be $9.10.
Me: Wow, you have a nice voice. Do you sing?
Teller: Why, yes I do. I actually really do. I sing in our church's choir. I absolutely love it. You should come listen. And if you ever come back here, I'll have to sing for you.
Me: I'd love that.