Kara Pernice introduces 3 techniques for facilitating user tests: Echo, Boomerang, and Columbo. Echo and Boomerang are fairly common and many would use these consciously or unconsciously, but the Columbo method is something I can’t remember consciously using in the past (silence is usually an effective technique to get people talking, as is talking about unrelated topics at the beginning of a session). It’s been an entertaining deep dive reading more about this method, it’s surprisingly used across a number of disciplines, but most enjoyable of all is watching old episodes of the TV series for which it is named after. You can learn a lot about interviewing people just by watching that show alone.