I "see" something else, that I think equates to what you're talking about. I don't pay too much attention to eyes. If I do, I actually can't concentrate on the speaker's words and meaning. It's distracting even on videos and film.
What I see is more of a feeling because I see it in my mind's eye, and not my physical eyes. That's the only way I can think of to explain it. Some might call it a vibe, but it's more than that, because it's combined with the real meaning of what they have to say, It's more of a synergy. When that synergy happens, that's when I know, "Yeah, uh-huh. We get it!" Some of it is actually from reading body language. I think I'm lucky to have consciously learned to do that many years ago. It's not natural for me though. I have to consciously look for it, and I don't get all of it with NT's.
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I'm not likely to be around much longer. As before when I first signed up here years ago, I'm finding that after a long hiatus, and after only a few days back on here, I'm spending way too much time here again already. So I'm requesting my account be locked, banned or whatever. It's just time. Until then, well, I dunno...