People often become nervous or fearful when giving presentations. Here are some phrases you can keep in mind when preparing for and giving a presentation.
I'm happy to be here.
I'm glad to have this opportunity.
(Turn nervousness into enthusiasm.)
I (really) want to tell you about this.
I have something interesting to tell you.
About Your Audience
This is something I think you should know . . .
This is important (to you) because . . .
You will be interested to know that . . .
You will benefit by knowing this . . .
About Your Subject/Material
The information is as follows:
First, I will tell you about . . .
These are the main points/supporting ideas . . .
The best way to understand this information is . . .
Look at this. It will help you understand my topic . . .
This shows (you) . . .