Use Pathos, Logos, and Ethos.
Humerous stories (Mostly belittling oneself)
Quotes (Relating to the topic and intresting facts)
Morals/ Ethos
Write out introduction, but the rest leave as bullet points.
Try to talk so that the audience understands, it removes all 'um's 'and's and 'uh's
Slow down your talking and repeat parts so that the audience can understand what you're saying
While writing, try to include personal experience, to show that you know what you're talking about and can relate to it