“You will do well to consider whether it is so or not, and to regulate your behaviour accordingly. I think your manners to him encouraging. I speak as a friend, Emma. You had better look about you, and ascertain what you do, and what you mean to do.”
– Jane Austen
Emma, Chapter 13. Emma is warned by John Knightley to consider whether Mr. Elton is in love with her, and to adjust her behavior accordingly. He believes Emma has been encouraging him. He is the first person to point out that Mr. Elton is wooing Emma.