When I first started teaching database sessions at conferences, I noticed a pattern.
When I finished the session, closed PowerPoint, and thanked everyone for attending, a big queue of attendees would instantly start forming at the podium. People would line up to ask private questions, one at a time.
And simultaneously, a small audience would form – people who wanted to hear every question and answer, but didn’t actually want to ask any questions of their own.
As a presenter, that sucked. There were sessions where I couldn’t leave the room until two hours after my scheduled time was over. Several different

