I would use slow pacing and hand gestures as a means to capture the audiences attention and keep it on me. Different tonal ques in the voice should come naturally but I would make sure to implement them in a way that helps the audience question and think about the topic. Last but not least I would engage with the audience by asking questions (even if I'm the one who has to answer them) and making sure to keep my voice even and as understandable as possible.
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