[Social Engineering] Why can't Observation be used to covertly judge approachability?

[roguebfl]

Originally Posted by Langy

You don't need an Acting roll to behave like a customer. Behaving like a customer is something everyone knows how to do. In particular, the guy could actually go in as a customer and scope out the joint; there'd be no acting involved, because he's actually a customer. Observation would simply allow him to do that stuff without being noticed.

Actully no, they only know how to do it if that all they are doing, and actully doing it. Without acting they will stick out like a sore thumb to security as no being customers if they try to do anything else. Becuase then they not behaving like they belong