The Metaphor in itself is debatable, if it's to be taken literally, but for the sake of argument lets say if you have enough Experience you can get the feel on what the other person is thinking by starting into their eyes.
However what if someone was wearing colored contacts (To hide their true eye color) and was conversing with an individual, would it still be possible to get that feel on what they're thinking or would it be Essentially Impossible due to the complete dullness their eyes seem to give off?
Also the guy with the lenses face is completely blank, his body language is normal, and his tone doesn't give anything away.So in other words it's his eyes or nothing.
Added (1). His eyes are not shifting side to side, he is maintaining perfect eye contact, his eyes neither narrow or widen; He is looking at you politely and respectably listening to you as you speak.
The only thing the other person has to go on is their Iris and Pupil.
Or did I misunderstand the metaphor and it was meant to be read as, pay attention to where their gaze moves and look out for the narrowing or widening of eyes (Which is much easier to read, but can be covered up by not reacting or giving false leads) instead of, stare directly into their iris and pupil and see if you can make out what they're thinking? Which in itself solves my question.
>>> Eyes are the window to the soul?