When preparing a presentation, there are three important things to consider: the audience, the presentation plan, and delivery. The audience needs to be understood to effectively tailor the presentation. The presentation plan should include content, structure, and visual aids. The content and structure keep the audience engaged, while visual aids enhance understanding. Delivery is also essential, as how something is presented accounts for much of the message received. Body language, eye contact, and enthusiasm during delivery are important to connect with audiences.