Given how form-fitting her clothes were, there certainly wasn't significant amount of machinations that allowed the movement. Movement which remained very fluid as she passed the book from it into her hand.

"Oh, I'm not arguing that," she knows quite well how much that can be needed. Thumbing open the book, the tail took to resting along the surface. "Though I do know people usually prefer if you ask around first. Especially when you're in a place where you shouldn't just go opening books wherever you find them."