I've just completed another semester of teaching public speaking to college students, and if there's one thing I could suggest to "beginners" it's to prepare and practice! What is the purpose of your speech? How do you organize a presentation? What are the main points you'd like your audience to remember? How can you hold the attention of your listeners?
I have plenty of advice based on years of experience and observation, and would love to help you achieve your speaking goals! I look forward to hearing from you.