Interesting video, nugnug. Too many of these so-called "psychological measures" are too subjective to be even remotely reliable. For example, "glib and superficial charm" - who decides what's glib and superficial, what's "real" and what's just used for a particular set of circumstances, like having to be nice to a work colleague you really don't like? Or, absence of guilt or feigned guilt - can't win on this one - if the person shows guilt, they're "feigning" and must be a psychopath, if they don't show guilt... they must be a psychopath!!!! One that cracks me up is the "emotional response" indicator - they don't react "normally" to distressing emotional circumstances, leading us to have to believe that there is, in fact, a "normal" response (or set of responses) that "most people" would display.
Most of the perceived behaviours (or lack thereof) are nothing more than someone's opinion, based on that someone's own life experience, values, expectations etc.
Another "psychological measure" that bothers me is "micro expression" for exactly the same reasons - who can really tell what a fleeting, micro-second expression actually conveys? Apparently, according to the pseudo-science, some very clever people can be taught to recognise and read these expressions, but it was still an ordinary human being who decided in the first place what they thought those expressions meant - I mean, how could they possibly prove it?
When these theories begin to filter down through popular media, they lose all semblance of "science" and become just another way to label people as a means of justifying our own prejudices.