A smile is good--lets Viktor know that he's relieved, at least. He's not accustomed to being a caretaker, but he can at least be a supportive presence. If Kell isn't well enough to speak yet, he'll fill the silence.

"I doubt you have any interest in this at the moment, but, perhaps for when you're feeling a little better."

A puzzle box, a real one, produced from his bag and set on the bedside table. For later, of course.

"How is your pain?"