[Eric looks surprised. Exactly one large sparkle flies off, as if it were an exclamation point.]

Oh! Of course, I'm always smiling when we're out together! But, I usually smile all the rest of the time too. It's kind of a habit.

[He pauses for just a second, before deciding he'll give this explanation.]

I work in an ice cream shop. [The customer service smile. Not necessarily about happiness.]