Components of an introduciton and conclusion

The components of an introduction are stating your purpose, thesis, main points, and establish your credibility. The components for a conclusion are to review your main points, reinforce your purpose and to provide closure for the audience. I would use these ideas for my speech by making sure I have all these components when I am writing my outline that way when it comes time for my speech I am ready. In introduction I would try and make my purpose, thesis, main points, and credibility as interesting as possible so the audience wouldn’t be bored. Then in my conclusion I will restate my main points by rewording it and not make it seem like I just said the same exact thing from my introduction. Then for closure I will try and leave the audience wanting more. I’m just not sure how I will do that just yet.