"His earlier thought returned to him: probably she was not actually a member of the Thought Police, but then it was precisely the amateur spy who was the greatest danger of all. He did not know how long she had been looking at him, but perhaps for as much as five minutes, and it was possible that his features had not been perfectly under control. It was terribly dangerous to let your thoughts wander when you were in any public place or within range of a telescreen. The smallest thing could give you away. A nervous tic, an unconscious look of anxiety, a habit of muttering to yourself--anything that carried with it the suggestion of abnormality, of having something to hide. In any case, to wear an improper expression on your face (to look incredulous when a victory was announced, for example) was itself a punishable offence. There was even a word for it in Newspeak: FACECRIME, it was called."

It is a testament to the detail of Orwell's vision that even "facecrime" has come to 21st-century America, literally. Two years ago a high school boy was found to be "wearing an improper expression" in an unsought encounter with an alleged Native American elder. The kid pushed back, lawyered up, and has taken gazillions of dollars from the wanker media. That's the only reason that, for the moment, facecrime has not caught on. But "wearing an improper expression" remains ill-advised in an age of universal surveillance. https://www.steynonline.com/