Before you start speaking in front of an audience, you need an interesting story to share. This could be about your product, service, an experience, or something else. A boring story won't make a great presentation. An exciting story presented poorly won't make a great presentation. Let's start with some simple storytelling recommendations to help you shape the raw material of what you will present.
With a great story to tell, now you need to produce an interesting, dynamic, and clear set of slides. While this may seem simple, it is more complicated than most people think. Don't settle for boring, cluttered slides: use your slides to be an extensive of your storytelling and message.
With a great story and slides, now it is time to hone your delivery. The very best presenters are dynamic, engaging, and keep you interested. This takes time to develop and you will only get better with practice. Let's focus on these skills right now so you can get them nailed in front of the mirror. Then, when you are comfortable, head out and start practicing in front of some real audiences!
Finally, let's look at some examples of some great speakers. Watch these videos, and don't just listen to how they present their content, but also evaluate their slides, their body language, and how they engage with their audience. Take these observations and integrate them into your own presentations. Best of luck!