Jane Austen - Northanger Abbey

“What are you thinking of so earnestly?" said he, as they walked back to the ballroom; "not of your partner, I hope, for, by that shake of the head, your meditations are not satisfactory."

Catherine coloured, and said, "I was not thinking of anything."

That is artful and deep, to be sure; but I had rather be told at once that you will not tell me."

Well then, I will not."

Thank you; for now we shall soon be acquainted, as I am authorized to tease you on this subject whenever we meet, and nothing in the world advances intimacy so much.”

Jane Austen, Northanger Abbey