Delivering a speech in public needs more skills and I have yet to come across a person who prefer to deliver the presentation in stead of listening, but I've always taken heart that the more one practice the better it gets.
If you would like to sharpen your skills in designing powerful PowerPoint presentations, check out Training with Duarte and tools and resources, which list a few videos, including Five Rules for Creating Great Presentations.
Three rules to remember according to Duarte are:
The client is king
Let them see the message
Spread the message
I'd like to try out using Twitter comment on powerpoint next time I'm having a class for a training session.... never heard of this till now... use Twitter in PowerPoint with Poll Everywhere, you can invite people to tweet a short comment directly to your slide in real-time, ... it will be pick it up as fast as Twitter allows.
The online Stand Up, Speak Out book with its 18 chapters on public speaking has been a great help to me when I had to prepare for a presentation last year. A true lifeline this one! but it seems one now has to buy it?! Would have loved to hear what you think.
The following was shared during a workshop that I attended >
When delivering a presentation:
7% of meaning is in the words that are spoken
38% of meaning is paralinguistic (the way that the words are said).
55% of meaning is in the visual
In the end it needs practice as well, so as to eliminate that which doesn't work.
Source: Haroun, Faika. 2012. Powerpoint: Managing the content for effective presentation. Stellenbosch: Stellenbosch University Language Centre.