21 Ways to Improve your Zoom Conference Keynote

1. Keep it short.
2. Make it useful and instantly valuable to the audience.
3. Don't use PowerPoint;
4. Use story, audience interaction (especially critical with Zoom) and action points.
5. If you must use PowerPoint use it as a backdrop not a teleprompter.
6. Don’t sit while delivering.
7. Rehearse the words you will say.
8. Rehearse the tone you will use.
9. Practise the energy you will need.
10. Your phone video can help with 7, 8, 9.
11. Love this assignment. And show it.
12. Introduce yourself, but then...
13. Burst straight in like a Bond movie with immediate relevant points.
14. Add to the mix: changes of pace, a bit of humour and essential points repeated.
15. Link to the themes of the conference.
16. Link to other presenters.
17. Dress smart but not distracting.
18. Ensure you know the time exactly but never be seen to look at watch, clock nor phone.
19. Signal a Q&A 'in a few minutes' so people can get ready and then you are likely to have questions. 
20. Thank the audience, tell them where to find out more and finish on time.
21. Write a personal review immediately of what went well and what you might do differently.