I was recently sent this 30-minute presentation about mental awareness given by the late Marine Lt. Col. Jeff Cooper.  We reference the conditions of awareness that he created (that were later expanded upon by Col Dave Grossman) in all of our courses as an overarching framework for the benefits that behavioral analysis offer an observer.

Since we are standing on the shoulders of giants, we always embrace the opportunity to pass on to our readers and students direct access to the leaders who have shaped our approach.  It is certainly worth the watch.  Enjoy.