A smirk is a misleading and subtle nonverbal communication. It's hard to judge exactly what a smirk means without a context, additional bodily movements or micro-expressions.
It can mean concealed amusement, contempt or smug confidence. If a smirk is in the form of a micro-expression, meaning it's subtle and happening almost too fast to notice, it's indicative that the person has just knowingly lied.
It can mean concealed amusement, contempt or smug confidence. If a smirk is in the form of a micro-expression, meaning it's subtle and happening almost too fast to notice, it's indicative that the person has just knowingly lied.
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