There def is some psychology to it....
100%. My old job we contracted a retired profiler to teach CEO’s about body language, how to negotiate, detecting lies, etc. Jodie foster from silence of the lambs that was literally her job
She would play press conferences of celebs in scandals and peep their body language and call cap.
She showed Bill Clinton’s deposition and what were indications he was lying… long story short body language is mostly innate, involuntary. It’s more accurate than verbal communication. Thread is jokes but for those interested, oh it’s legit