Not trying to be a smart aleck but this is more of a question that you should do yourself because this is more of a essay type question. Introduce yourself and your side of the issues, then give a few reasons and explain them. At the end thank them for taking to time to read it and restate your side of the issue.
4. Believability and confidence. The more confident you are the more you grab your audiences attention. The more believable your presentation is the well more your audience believes it.