David D'Souza gave one of the most memorable KIN talks ever.He did it without slides.
This is why and how...
https://daviddsouza.com/2018/07/10/why-i-strongly-dislike-powerpoint/
If you must use slides, try using simple images without text to reinforce your story.
(David's talk from the Winter 2016 KIN members' workshop is here)
