Which statement indicates the characteristic of lying in facial expressions?

The characteristic of lying in facial expressions is often indicated by the behavior of looking down frequently. When individuals lie, they may experience discomfort or anxiety, which can lead them to avoid direct eye contact and instead look down. This behavior is associated with feelings of guilt or the fear of being caught, which can manifest in a sense of avoidance of engagement with others.

In contrast, smiling often or maintaining eye contact might not indicate lying at all; these behaviors can sometimes reflect sociable or confident interactions. Additionally, showing open body language typically suggests openness and honesty, as it conveys a willingness to communicate freely without any form of deception. Thus, the tendency for someone to look down frequently stands out as a more reliable signal of potential dishonesty.