Was it something in her actions that let people see her motivations as if they were spoken words? Had she simply been around Norville long enough that he picked up on these things? Perhaps it was both. Or neither.
Kitty waisted little time loitering. She scampered enthusiastically into the reaches of the library, familiarizing herself with the way it was laid out and where each section was. Confusing, in the beginning, but she discovered new things while she was wandering aimlessly. For instance, this library had a small few shelves dedicated to graphic novels, manga, and comics—things she hadn't seen before. These pages smelled good, though, so she took one as an experimental read. No harm in trying something new.
Many minutes later, Kitty returned to Norville, looking less like a deprived book-addict and more like herself. She had a "few" books with her, too. ((And we all know what a "few" books looks like.)) At least she had tried to minimize, but with so many new adventures—it was like letting Sam run around and smell things.
There were maybe four good-sized novels in her stack; in no way were they short reads, even though she'd likely be through with them by the end of the week. Kitty set the heap gently beside the computer and grinned like a child who had accomplished something praise-worthy. She was happy. She had found books.