it's very confusing when people have similar enough avis that i mistake them for each other when i look out of the corner of my eye, i find out who i'm hoping for replies from 
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I also track people by faces and get confused when they change or look like others. That's a big reason why I made a very distinctive avi and am never changing it. I want people to glance at the weird green/orange/red color scheme and immediately know it's me.
