read someone's lips

Verb

 * 1) To discern what someone is saying by watching the shape of the mouth rather than by hearing the sounds of the words.
 * Deaf people may be able to read people's lips, but it's not a foolproof means of communication.
 * 1)  To pay close attention (often imperative).
 * Read my lips. We are not going to the park today, and that is final.

Translations

 * Finnish: lukea huulilta
 * Polish: czytać z ust, czytać z ruchu warg
 * Swedish: läsa på läppar, läsa någons läppar