How to make a fun and memorable lecture on the gastroenterology

There are a lot of lectures not only in the symposium, conference, seminars, but also in the Internet space (YouTube, VOD services of the medical society Internet site). It is more and more difficult to get attention and make the lecture memorable. In this lecture, I'd like to show you how to make an interesting talk in the medical society.

1. You are the speaker. Not the slides. Make yourself the topic of the talk.
2. A lecture is a talk. Any talk should have a story. 
3. The audience can remember only three things in your talk. Make it simple, simpler and even more simpler. 
4. Make high quality images.