"Well… If you want to pursue her, you can actually ask me to write a love letter for you. I'm quite the expert," Han Leng said, managing a tone that was somewhat half serious and half joke.
Zhang Xiang immediately waved the offer off, saying that he did not dare cause Master Han Leng any trouble. He found the idea peculiar. Who pursued girls with love letters nowadays? Even Chinese Studies students would not do so.
Instead of writing a love letter, why not find an opportunity to get hold of a girl's contact? Start off with some small talk, take it step by step, until you go on an actual date. Never, ever do something stupid like taking a knee and confessing.