Well, that was illustrative. It'd be one thing if he rambled on to distract her from a lack of answer or something he didn't want to be caught doing, that'd be normal enough, but the blank stare is different.

"I'm just fine, though I'm getting the feeling the same can't be said for you, Corporal." Her arms cross loosely. "You seem out of it, that's not like you. Unless you meant to just stand here, staring at nothing in particular."