Psychological Manifestations

When the mind is in dissonance, the body makes this manifest through various tells:

Diminishing is where gesturing becomes smaller. There's a limited range of expression with hands and arms. The elbows pull into the ribcage and the shoulders roll a little forward - the boxer position. There's a reason why boxers have this position. 

Detachment is where natural emotional responses are delayed or squelched, separated from their verbal expression. When the subject has been involved in a traumatic context but feels little remorse for the consequences of their actions, regardless how heinous. 

Delight, also known as Duper's Delight, are pleasure tells expressed during questioning or after disclosure of trauma. These are a creepy internal admission that the subject feels they're getting away with their deed.

Disconnection where the expression in the eyes doesn't match expression in the mouth. Typical and easiest to identify are when the crows feet form at the corners of the mouth but not the eyes during a smile. 

Direction has to do with indexing associated with eye movement. The subjects's or victim's feet tell where the body wants to go. When feet move in tandem toward an egress, the subject wants to get out of there.