Interesting bit there at the end. Just by being human I can say we are quite capable of telling if someone is looking at a point a couple of inches from our ey

Interesting bit there at the end. Just by being human I can say we are quite capable of telling if someone is looking at a point a couple of inches from our eyes from across a table (can usually tell which eye they are dominant in and which of your eyes they are looking at). So if your face is in the middle of other screen and they look down at that image instead of at the camera, the question becomes will the resolution of your image of them be enough to tell? I bet it will be easier to tell if they look back and forth between the camera to the image. And better video quality and distances to the phones will, of course, make it easier to see the lack of true eye-contact. So, in addition to just holding your phone further away, maybe everyone can aim their own phone's camera so that the image of them on the other phone has their eyes as close to the camera as possible. One might just find that people start gravitating to that "off center" camera aiming without thinking about it (since it would minimize the other person's eye-jitter). Anybody reading this done much hand-held video calling? Where are the thresholds on these variables?