I don’t know how this works in other museums, but at the Computer History Museum in California, a decade ago, the front-of-house volunteer ladder had three steps. The first one was being a greeter – saying hello to visitors, explaining the museum’s layout and activities, and handling purchases. After getting some experience doing that, you could graduate to a docent, and sign up to give one of the few pre-arranged public tours. CHM volunteers at work: greeters (upper row) and docents (l...