Quotation from a book’s author, Allan Pease
The speed of some gestures and how obvious they look to others is also related to the age of the individual. For example, if a five-year-old child tells a lie to his or her parent, the mouth will be deliberately covered with one or both hands immediately afterwards (Figure 1).

The gesture of covering the mouth alerts the parent to the lie and this gesture continues to be used throughout the
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