>>13448559When they are acting more, you can spot them because their autonomous nervous system is all fucked up, so most of their reactions are fake and incomplete, specially around the eyes, which are more static than normal.
Many studies show a person can't distinguish between honest behavior from lies and acting, even if a policeman or psychologist is doing it, but there are algorithms that can do so.
Also their lies and behavior will lack consistency with their actions and show many suspicious details along time.
There are even more ways to detect them besides superficial evaluation, but it's hard to try anything in a society full of idiots led by those people.