When it comes to reading behavior, we spend a lot of time on the site focused on the behavior that is driven by the limbic system and how that portion of our brain perceives and responds to the world around us. While it is the limbic system that provides trained observers with the instantaneous, automatic, uncontrollable (and therefore honest) responses we need to make accurate assessments, we can’t ignore the behaviors and gestures that are driven by a different section of our brain – our pre-frontal cortex.