There's more art to it, because there's also an off-putting way of doing that, which frequently shows up in presentations: you're greeted with a powerpoint slide with the topics in bullet points, which the presenter reads out loud, then come the slides with each of those points, also read out loud, and at the end there's a summary that almost copies the first slides, and which --for good measure-- is also read out loud. That makes me want to forget everything that's been told.