Being a first-class noticer15 allows you to recognize talent, identify opportunities, and avoid pitfalls. Leaders who succeed again and again are geniuses at grasping context. This is one of those characteristics, like taste, that is difficult to break down into its component parts. But the ability to weigh a welter of factors, some as subtle as how very different groups of people will interpret a gesture, is one of the hallmarks of a true leader.