HarrietVane99 has given first class advice.
To project your voice, you literally have to speak to the back of the wall - just over the heads of your audience.
If you don't have power point, can you use small data box cards? (I am old enough to remember when we didn't have databases on a computer, we had a databox. They are about the size of a mobile phone. You don't have to hide them, but it is neater than wafting a crib sheet of A4. You
- Flick left hand to show you card with REMINDER POINTS
- Speak the that card and then pass the card to the back of the pile
- Flick left hand and read your next REMINDER
(Make sure that you number your cards in case you drop them in your setting up nerves - and always put an elastic band round to keep together in your briefcase)
Have a glass of water available in case you get 'dry mouth' and a tissue in your pocket in case you cough/sneeze.
SMILE SMILE SMILE SMILE - never look terrified! But I always look around at my audience (slowly) and smile .......... they tend to smile back which is so reassuring! But it also relaxes your face muscles
Now I was originally frightened about looking at the audience first when I got to big numbers but I discovered that once you get over 50 in the audience, you can't count and it simply doesn't make a difference!
I did insist on a radio microphone when I was in the 200+ bracket because even my voice was 'absorbed' by that many people in the room.
Start with a "Welcome" speech rather than launch into the topic.
- Welcome, good to see so many here on this hot/wet day
- Today we will be discussing ......
- This is an important topic for all of us in x sector because....
- I am happy to take questions throughout .... OR
- I will speak to you for 45 minutes to outline x and then I am sure your will have questions so we will then have 20 minutes of questions
- You may take notes if you wish, and you may want to write down any questions you have as I speak for the first 45 minutes
- Now, can everyone hear me clearly?
[If they say Yes - smile again. If they say No - repeat the question looking at the back wall just over their heads and projecting your voice louder. That gives an interaction and a joining of you as the speaker and the audience]
- Good!
- So I will start be reminding you of the legislation/policy/focus
Then you launch into your delivery points.
HTH