Well, quiet is appropriate in a library! He echoes the greeting vaguely, settling in and selecting a book, but the second glance and the question that follows keep him from opening it.

He presses his lips together in a thin line. Opening up does not end well for him, apparently, no matter where he goes. But then, neither does snarling demanding concerned individuals back off, so he rolls the dice mentally, sets the book down, and rests his elbows on his knees.

"I've been better, I suppose. Suffering a minor identity crisis, perhaps. Nothing I haven't been through before." His smile is weak, but it's there. Somewhere deep down he appreciates the kindness, whether he'll admit it or not.