wish reaction Friendly table [2d10]=9, -5 =4: Friendly
The wish is granted, Steve now has the power of echolocation (as described in the bat sense spell) without the need to close his eyes.
He is also Blind!
Just kidding

True identity:
The brevity and wording of the ability seems to me to imply subjects that don't look like they normally do (Polymorph, illusion, disguise); I would further add shapeshifters not in their natural form like werewolves, dopplegangers, etc. I would say it allows the user to see the subject's natural form. It would not give a proper name or a species name, only a visual image of the figure in his mind.
-A Person polymorphed into a creature would look like the person
-A Person's soul trapped in a flesh golem would look like the person trapped.
-A Lycanthrope (like werewolves) in human form would look human
-A Therianthrope (like wolf-weres) in human form would look like the animal (wolf)
-Dopplegangers would look like their native doppleganger form
etc