1) A presentation is a means of communication used to convey information to an audience through speaking. It is important to plan by considering the audience, goals, and information needs. 2) When preparing a presentation, the speaker should determine its structure, use of visual aids, voice delivery, appearance, and style. Thorough preparation is key which includes rehearsing the content, timing, and delivery. 3) Effective presentation requires engaging the audience, showing passion, maintaining eye contact, and exuding confidence. Being well prepared, practicing, and having expertise on the topic helps overcome common flaws like lack of practice or confidence.