Pitching fan:
very true. During the Area Code games I would "wander" into the dugout and then the bullpen and listen to the players talk about themselves, complain and make excuses.
A few would analyze the situation on the field and prepare for their next AB or Mound appearance.
All products of their previous 2 years of life and baseball.
Their baseball future "very predictable"!! College Coaches and Pro Scouts study "body language"! We call it "non verbal" communication.
"Test running", a form of "non-verbal communication" has been a Coach's communication to his team for 50 years.
Bob