Pursed lips: an indicator of distaste, disapproval, or distrust.
Lip biting: signals people are worried, anxious, or stressed.
Covering the mouth: used when people want to hide an emotional reaction.
Turned up or down: When the mouth is slightly turned up, it might mean that the person is feeling happy or optimistic. A slightly down-turned mouth can be an indicator of sadness/ disapproval.
A clenched fist indicates anger in some situations or solidarity in others.
A thumbs up and thumbs down: gestures of approval and disapproval.
The "okay" gesture: "okay" or "all right." In some parts of Europe, the same signal is used to imply you are nothing. In some South American countries, the symbol is actually a vulgar gesture.
The V sign: peace or victory in some countries. In the UK and Australia, the symbol takes on an offensive meaning when the back of the hand is facing outward.
Open posture involves keeping the trunk of the body open and exposed. This type of posture indicates friendliness, openness, and willingness.
Closed posture involves hiding the trunk of the body often by hunching forward and keeping the arms and legs crossed. This type of posture can be an indicator of hostility, unfriendliness, and anxiety.