I believe that people in the Martial Arts, who study, train and fight over a prolonged period of time, develop some form of radar, some bullshit detector, some hard to explain, hard-wired primal eye for the jungle. And we often try to teach the principles of these things to long time students. This further strengthens it in us because it's something we pay attention to. We profile.
True, and this is one of the attributes a tournament fighter, in particular, develops when having to study his paired off adversary before entering the ring, even if subliminally.