"I thought that might be too obvious," she admitted, "The students now are a great deal craftier than we ever were. I believe that may be saying something."
She smiled to him and moved to inspect the book. Not that she expected any damage, but you could never be too careful.
"Well that's all right then," she decided after a moment before sitting on the desk itself, legs dangling down.
Perhaps not a proper way to sit, but her preferred position nonetheless.