to look at opponent's eyes or not?
My sensei and my dojo mates always advises me to look at my partner's eyes in order to estimate his forthcoming attack. Frankly it has rarely worked. And recently I have heard of a word which is " do not look at your opponent's eyes, otherwise your spirit will be drawn in." I am not sure whether it belongs to O Sensei or not; but I think it has some true aspect. However accepting this word arises another inevitable question; that is " if not to opponent's eyes, where to look?"
I wonder your comments and experiences.