1984 chapter 6

From the text:

He thought of a man whom he had passed in the street a few weeks back; a quite ordinary-looking man, a Party member, aged thirty-five to forty, tallish and thin, carrying a brief-case. They were a few metres apart when the left side of the man’s face was suddenly contorted by a sort of spasm. It happened again just as they were passing one another: it was only a twitch, a quiver, rapid as the clicking of a camera shutter, but obviously habitual. He remembered thinking at the time: That poor devil is done for. ch 6