"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 offense. there was even a word for it in newspeak: facecrime, it was called."