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When a person is happy they are often smiling or laughing. They are less likely to hide their facial expressions from others.

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When a person is confused they often have a puzzled look on their face. They could also use their hands to show that they do not understand something by scratching their head or face. Their mouth could go do one side and their eyes sometimes squint.

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When a person is sad they could show facial cues such as frowning, crying. They could touch their face to hide it from someone or they could be slouched down in their seat and not making eye contact with anyone.

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A bored person finds other things to do, from doodling to talking with others to staring around the room. They may also keep looking at their watch or a wall clock. Bored people often repeat actions such as tapping toes, swinging feet or drumming fingers.

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When someone is showing signs of anger their mouth can reveal a lot, usually in the form of tension. The jaw might appear tense, or the teeth clenched. In addition, lips might be pursed, frowned or quivering. Eye contact might be intense, without the usual glances away that reduce tension. A furrowed brow might make the eye contact all the more menacing.