Micro-expression : last for less than 1/5 second.
One sided shrug : no confidence.
Real surprise : last for about 1 second, more than that, fake.
Hand to forehead==shame.
Break eye contact to recall memory, if not doing so, not recalling memory, lying; people make more eye contact when lying, in order to confirm whether others are convinced.
Rigid repetition of answering is typically a lie, eg, have you ever been to there?;no I haven't been to there.
Tilt eyebrows : sadness.
Raise chin : embarrass.
Noise itches when hiding something.
Slightly head nod before shake head : typical both "yes" and "no" answer.
Hand put into pocket and press towards thigh : nervous.
Distance in language.
Liar makes story in forward order, can't tell story in backward.
Dilated pupil==fear || anger || sexual desire.
Wrinkle around eyes when smiling==real smile.
Significant drop in skin temperature==scared; blood flows toward legs, ready to run.
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