Oh... that drop of emotion. Could it be that he lost someone today? That... would do it, huh.

Hmn... she wasn't really feeling too good about having him open up on that. Until he wanted to, at least. So, maybe... focus on the second part?

"Yeah, I heard about some of the problems that happened on the planet. Were you a part of the teams that got hit hard? Did anyone you know get hurt?" Not the cheeriest topic, she'd admit, but maybe that would be an easier thing to talk about.