When you attend a workshop, keynote, or lecture, you usually go to see the speaker not to hear what they have to say. You know what they have to say. That's why you go to see them.
How many speeches have you heard? How many of them can you remember? See where I'm going? They're all blah . . . blah . . . blah.
In a song, we first remember the melody and then we learn the words. Instead of giving people the benefit of your wit and wisdom (words), try painting them a picture.
Tony Robbins is a master of this art form. Even if you don't like him or his message, you have to say that he is a powerful speaker. His arena events change people's lives — he uses music, visuals, and physical energy to rev up the crowd. You don't need to be like Tony, but you can appreciate some of the elements of his talks.
Bottom line, the more strikingly visual your presentation is, the more people will remember it. And, more importantly, they will remember you.