Think this through a minute, Mitch. She sees a panicky looking guy coming toward her and her first instinct is to turn her back on him and look the other way?
I'm pretty sure that in the one o'clock hour that afternoon, there were plenty of people with shocked, panicky, startled, lost, etc looks on their faces. And I doubt panicky faces were unheard of at other times, either. There's no reason to assume that she necessarily must have immediately associated that panicky look with suspicious or threatening behavior
Perhaps not, but how long do you really think Postal stood there staring west?
I would say, something like on the order of 20 seconds.