so regretfully to say with sufficient intelligence you can do the Sherlock thing of reading someone through extrapolating subtle visual cues

or even the thing of telling when someone’s making things up by how their eyes move

or the monk thing where by hanging out analyzing yourself you can establish volitional control of your body

it can be spoofed, though!

when George W. Bush said he judged Vladimir Putin by staring into his eyes and seeing his soul the issue is that the guy who rose from the KGB to command Russia is exactly the guy who can spoof that