[Shepard isn't a psychologist, and her specialty isn't reading people. But she's done her fair share of interrogations, and she can recognize a faked smile. At least in context. Something is seriously wrong here.]

. . . Hey.

[She glances over her shoulder and around them to make sure nobody's listening.]

If something's wrong... Well. I won't make you talk about it. But. You don't have to smile for me, okay?

[She pauses for a long moment, then smiles very slightly.]

I haven't played since I was a kid, but, if you need a practice buddy, I'm here.