He has a very satirical eye, and if I do not begin by being impertinent myself, I shall soon grow afraid of him.
– Jane Austen
Pride and Prejudice, Chapter 6. Elizabeth says this about Darcy, aware that he is paying close attention to her and has been listening to her conversation with Colonel Forster. She thinks Darcy is looking at her critically and is ready to defend herself. But Darcy is actually attracted to her.