There are three ways to begin a lecture such as this. The first is to ask people to turn to each other and say why they came to this particular part of the program and what they expect to hear. This approach has the advantage of giving the speaker five to ten minutes less lecturing time. Much as I'm tempted, I think this tactic might leave you feeling shortchanged. The second approach is to say: "I don't quite understand the title I've been asked to address"and then waffle for twenty minutes on the semantics before ever dealing with the subject. But since I chose the title, I can hardly quibble over it. The third approach (at least for me) is to admit that the last sixty seconds have simply been an exercise in enabling your ears to be attuned to my [Scottish] accent, so that when I begin to deal with the topic, you might at least acknowledge that you can hear if not understand.
Bell, John, "Debt, Imperialism, Eunuchs, and Contemporary Christian Worship" (2006). Institute of Liturgical Studies Occasional Papers. 113.