>>17Neurotypical people make regular eye contact during conversation. You can't really see it as an insurmountable challenge to do so, so I assume you are being facetious in order to emphasize your point.
Well, if you can notice the dilation of people's pupils with a few casual glances, then good for you, you either have an amazing eyesight or you talk to people like 4 inches from their faces.
But yes, it's not foolproof, it can't be, you won't just find an algorithm here to see if a girl likes you, different people are different and you lack the instrumentation to detect changes in their blood vessels or whatever biological processes are correlated with it, as if it fucking mattered.
And please, don't anyone start with that seedy PUA crap, I'm starting to sort of like this place.