You can tell in most cases if the person in front of you is a psychopath, but just to be more sure, here is a simple and fun way to tell if you are dating a psychopathic person.
You can tell from the way they yawn! Strange I know, but scientists discovered one thing strongly in common among most people with psychopathic traits which is their lack of response to other’s yawns.
A study was made on 135 students between the ages of 16 and 20 who completed their Psychopathic Personality Inventory-Revised which is a test to determine the ones with psychopathic traits, the students then got exposed to a situation that caused them to yawn in response, the ones with more psychopathic traits were less likely to catch on someone else’s yawn.
Psychopathy is an antisocial disorder where a person lacks emotions, Psychopaths are usually unable to build a strong emotional bond with others, they have hard times getting the emotions of others which makes it hard for them to catch on a contagious yawn.
Psychopaths may not be able to read the emotional of mental state of someone else in front of them yawning and this is the link between yawning and psychopaths.
Of course not everyone that don’t catch on your yawn is a psychopath, but when you find someone with cold feelings, lack of empathy, self absorbed, narcissistic and don’t yawn when you yawn then that person is highly likely to be a psychopath.