If you have the opportunity VOLUNTEER to go first. have a good breakfast. Wear something that makes you feel professional (not suit and tie) Find a spot, object, or item in the back of the classroom and focus on it. Of course dont forget to make eye contact with the audience. What is the speech about? Are you able to start of with an ice breaker or can you incorporate humor in the introduction? It will loosen you up a little bit
it's about HPV, the Human Papilloma Virus, a sexually transmitted disease. I don't think a joke about genital warts or cervical cancer would work in this class.
But yeah, I was planning on wearing a button down and tucking in my shirt to feel more confident. It's weird because I'm very confident in real life but I've always had trouble with these types of presentations.