In Sara's talk she also said "It is ok to not tell students the question, to give them time to notice the structure." For example, give a parabola with two x-intercepts and a y-intercept and then ask the students what questions could be asked from the visual. We also need to start telling me our students “convince me” rather than “can you explain that” or “tell me more”. Sara's talk was one of those talks that I wish I could watch over and over again. I know I could pick up more tidbits of insightful and useful information each time.
In case you are wondering more about how to do a "Stand and Talk", here is the link to the Stand and Talk blog post by Sara.