This blog has a ton underlying something I think of each time I go into a large presentation - be a rock star!
I realize that's oversimplifying it a bit, but if you think about presenting there are many items that do coincide: know your material in and out, think about your audience, bring the enthusiasm...etc. I realize not every presentation is going to be rock star material, but if nothing else it makes me strive to elevate what I am discussing and has given me something more to strive for whenever delivering material to a larger audience.
... and if you feel you're losing people's attention, biting the head off a live bat is a way to get it right back! Try that next time people are nodding off while you drone on about cloud architecture.
I realize that's oversimplifying it a bit, but if you think about presenting there are many items that do coincide: know your material in and out, think about your audience, bring the enthusiasm...etc. I realize not every presentation is going to be rock star material, but if nothing else it makes me strive to elevate what I am discussing and has given me something more to strive for whenever delivering material to a larger audience.