Usage of the “not face” in different languages. The second and third column indicate that the expression was produced during a negative or positive sentence (co-articulator), respectively. The fourth column shows the number of times that participants used the “not face” to indicate a wrong reproduction of the intended sentence (nonverbal signal). The fifth column indicates the number of times that participants forgot the memorized sentence; these cases were immediately followed by a request to re-read the sentence. No other instances of the not face were identified. Thus, the “not face” was used in 2.83% of the negative sentences, but in only 0.13% of the positive sentences.