Your presentation has to be about 8 minutes? My advice is to make it less of a "speech" and more of an activity. Create some nice materials and come up with a short activity to reinforce the ideas you are trying to share. Make it less about you, and more about your ideas. Your classmates will likely have fun that way, too!

I'm a teacher, and believe it or not, I hate giving speeches, too. When I am teaching, I have no problems in front of a group, even my peers. But a speech is something scary!

If you need help coming up with some ideas about how to make your presentation an activity, let me know. I'm in a Curriculum & Instruction program so I like this kind of thing.