From the London Speaker Bureau is a fun and informative graphic:
For those of you short on time here they are:
1/ Know what you are going to say and organise it into chunks
2/ Realise that nobody can tell that if you are nervous
3/ Don’t put your hands in your pockets
4/ Keep your sentences short, pause between sentences
5/ Make sure the content is engaging
6/ Tell a Story
7/ Prepare, prepare, prepare
8/ Avoid Distractions
9/ Understand why you say “Um”
10/ Know your transitions
11/ Listen to yourself.
No 7 is key and the more you practice the better you will get. Happy speaking!