He nodded, closing his book and setting it on top of another book he'd gotten. "I'll probably just check these books out and head home, unless you have anything you have to take care of, first?"

Anything being something along the lines of damage control with the other patrons, but even though anyone spying surely wouldn't expect him to not know about something that just happened, he suspected from her earlier warning look that it was probably best to act less concerned about events that he saw than he actually was.