The Flim Flam Brothers' Guide to Wooing the Mare of Your Dreams

Next, it is suggested that you leave her anonymous notes and gifts. Although it seems that this will not accomplish anything at the moment, later on, as you relationship progresses, you can reveal that you were the one giving her those lovely gifts. It also helps if you give her the aforementioned gifts when she is angry or sad, as they will brighten up her day. However, you should make sure that your special somepony is not in a prison or other building with tight security. It will not impress her if you get arrested for breaking and entering.

Twilight was on her way to Rainbiw Dash's house. Along the way, four other colts had "accidentally" bumped into her, and said things that were reminiscent of what Comet had said, that they were on their way to dinner and if she'd want to join them or that they were going to the bookstore and if she wanted a specific book and so on. She'd dismissed them all in ways similar to how she got rid of Comet.
On her way to Dash's, she passed by the library, and saw something horribly amiss. There was a huge banner hanging over the door, which read "Gentleponys' Literary Club Reunion Held Here." the sign banner baffled Twilight, she'd never been approached about a book club holding a meeting in the library that day. So, Twilgiht went right inside, and, lo and behold, she found Thunderlane and many other colts holding-or levitating, in some ponies' cases-books.
Thunderlane had been reading from the book before Twilight burst in, but immediately stopped and stood up to greet her. "Hello, Twilight," he said, smiling guiltily and hurriedly kicking the book behind him. "We're holding a book club meeting here. I assumed you'd be okay with it, with your love of bo-," he began, before Twilight interrupted. "Look, Thundelane. I've had five ponies run into me and then try and invite me somewhere, and when they left, they also said that the advice from the book that YOU," here, she pointed an accusatory hoof at Thunderlane, " had given them. So what is this oh-so-famous book that a ton of you colts are reading now?"
"Well, Twilight," began Thunderlane, "you should know. I mean, for all intents and purposes, you gave me this book." And before Twilight could even ask what he meant, Thundelane turned around and showed Twilight the copy of The Flim Flam Brothers' Guide to Wooing the Mare of Your Dreams.