Among the hardest things to explain is something that everyone already knows. We all know how to listen, how to read, how to think, and how to tell anecdotes about the events in our lives. As adults, we do these things every day. Yet the level possessed by the average person of any of these skills may not be adequate for certain special situations.Exploratory tester James Bach describes eight key skills that expert explorers possess, and how you can develop them too.