My old Kung Fu Sifu used to just look over your shoulder, sort of beside your head. I think he used peripheral vison to pick up motion ('cos it is faster than straight-line vision) and then I couldn’t tell where he focused as I would be getting hammered. It worked pretty damned well for him. But he did spend 15 years in China training, and he could blind fight prettty well too.
“Through strength, learn gentleness. Through gentleness, strength will prevail”
In my version of WC, we looked at the elbows and knees. We were trained to decipher the type of punch or kick thrown by semi-focusing on the leading elbow/knee while maintaining our peripheral vision (this is before contact) since the elbow moves approx. 2.5 times slower than the fist.
It worked for us.
I take a Universal Stance regarding the Martial Arts.
our teacher says constantly scan your oponent while not focusing on any one area in particular. he says you should be looking at everything 180 degrees around you. this is pretty similar to what the other guy said about looking over his shoulder to utilize perephrial vision.