public speaking
McWho, There are loads of guides online or in books describing ways of getting over the fear of public speaking. I have done it a few times and I would say the absolute KEY THING is to know what you're talking about. Practice what you will say and deliberately speak slowly.
If you make a mistake or forget what you were supposed to say, that will be your downfall.
Keep it short, dont go into much detail, keep it interesting, and speak to objects rather than faces. Pick out pillars, empty seats, even dodgy hair cuts and speak to them. To everyone else it will look like you're speaking to people in the room.
Everyone else has to do it and something like 8 out of 10 people are like you so your not alone.