There's an easy test. Ask someone to visualise the face of a friend and then ask about some detail that isn't one people normally note, like how thick the perso

There's an easy test. Ask someone to visualise the face of a friend and then ask about some detail that isn't one people normally note, like how thick the person's eyebrows are. Those with the ability to visualise will be able to see it and relate the information. Those without, like me, will not.