“Once she felt that he was looking at herself, observing her altered features, perhaps, trying to trace in them the ruins of the face which had once charmed him…”
While Anne sits at the piano during dancing after dinner at the Musgroves
Persuasion, volume 1, chapter 8
Thanks to Mollands for the CE Brock illustration. Of course, that is Mr. Musgrove with Anne at the piano, and not Capt. Wentworth!