She's cordial, kind, and her overall demeanor sets him more at ease. It's not that he can't trust people, even in such a strange place, but he still feels out of place to the point that it's difficult to accept what he's being told at face value.

So, wanting to be respectful at the very least, Robin manages a slight, albeit affable smile, and takes a seat as instructed.

"Do forgive me, I'm...not well acquainted with all the technologies so prevalent here. I admit I'm still slightly disorientated. But I appreciate your assurances, Dr. Crusher. Please, do simply call me Robin." He'd rather dispense with the formalities. "A vaccine...ensures one remains in good health, then?"