Few months back I was asked to take a stage together with 2 other presenters. Questions were thrown to me on the last minute. 1. No stage flight: Be confidence. Channel that nervous energy into enthusiasm and passion for your topic. The joke was the moderator hand was shaking all the way. OMG. I did not. 2. Get prepared: Take key points or short notes. 3. Begin with a compelling note in the presentation. 4. Looking at the audience & engage in delivering key points. 5. Interact with audience: I intend to have a Q&A but the session ended without one. It was a disappointment to me. 6. Learn from the Experience: After the presentation, reflect on what could be improved. I use this feedback to enhance my future presentations.

Some ways you can overcome an impromptu presentation fright is: 1. Write few points down on your pad. When anxious one can forget the points, so it's important to write down what is most important to share. 2. Take deep breathe and calm down, remember your audience are as calm as you are and they just want to interact with you.. please don't avoid eye contact, look at the audience as you speak.

Begin with the knowledge that the reason you are there onstage is because someone determined you were the best person available to make that presentation. Remember also that you are in a position of information asymmetry in your favor: The audience does not know what you know, but their default assumption will be that you are authoritative because you are there in front of them. They do not know what you choose not to (or forget to) present, only what you *do* share; and the simpler your message, the easier it will be to get across.

In my experience, making an eye contact and starting with a relatable story or question helps break the ice and draws attention away from yourself. The more the audience get engaged, the lesser is the nerve wrecking.

Well, DON'T DO IT, unless you are ABSOLUTELY SURE you know the subject deeply and preferably delivered a similar presentation in the past. Never just use another one's slides, becuase the audience will feel instantly that the presentation is not 'authentic' or 'yours'. So, of course you can jump, in, but only if you're really confident. If you are not comfortable with the subject, are forced to use someone else's slidedeck that cannot be changed or in any other way feel resistence; don't do it, you will probably fail or at least not get the best results. Reschedule. Or... change the presentation for something YOU are comfortable with and can deliver in an authentic way. The audience will appreciate it.