While I was a student I worked in retail. At one store we were encouraged (forgive me if you hate sales assistants) to ask open questions to invite conversation. It’s harder that it sounds. Years later while being trained in user research we were encouraged to ask why. Not only why, but as many whys as we could … and you know why … to get to the root cause, that deep fundamental driver of behaviour. Of course this too is not as easy as it sounds. Unless you’re a charming 5 year old asking why can sound pretty obnoxious and being asked why can make anyone feel quite defensive. I’m guessing advice like this has its roots in the famous 5 Whys, which I take to be a tool of analysis, not a script. If you disagree with anything here, or have more to add please say so in the comments.