Presentation help? 10 points. suggestions?

We'll be having presentation for our activities. I need to compile all the activities of my groupmates including me to one folder. Then present our activities. I'm the leader of our group. I'll be the one to present then I don't have any idea what will be in my first paragraph. Can you suggest please? I'm not good at starting. I would reaally appreaciate it. Thank you! :)