I'm not the best speaker. I'm still nervous and anxious before every talk, even when moderating. But I prepare for every talk - whether I am a moderator, panelist, keynote, trainer, or co-host. Here are some things that speakers do wrong:
1. Relying on PowerPoint. When technical difficulties occur as they often do, speakers are not prepared to talk without the slides, the crutch. Be ready to talk without a microphone and without the projector.
2. Don't read me the slides! I have been reading since I was 4. I don't need you to read me the slides. I need you to tell why that slide was included in the first place.
3. Have some emotion. Tired or hungover is no way to present. Energetic or passionate is preferable, but at least speak up and into the microphone.
4. Respect the audience's time. Yes it is your time to speak - and you have something (hopefully prepared) to say - but remember that the audience likely paid money to be there. It has to be valuable; not just your talking points.
5. Tell a story or be Engaging. This speaks for itself. If everyone is heads down on their phones, take the hint. (They aren't all tweeting about how profound you are.)
Is it tweet worthy? Have you said anything worth tweeting? Not the ultimate test, but certainly some gauge of audience reaction is social media.
In the end, would you want to listen to you?
In a previous post I mention that teaching is part entertainment. That may not be what you signed up for (to be an entertainer), and I am not saying be Jack Benny, but your points will come across better if you present them well.