Often some of the nervousness I feel in speaking is whether I will remember everything I wanted to say or will express it in the most effective way. But if I have researched a topic enough, there also develops a sense of sincerity in my speaking style because I do not have to make up information or justify my speech in non-empirical terms. I speak much better when I have a lot of information in my mind. Fallacies of history were exactly the things I was researching for my oil and war speech. Therefore I spent less than thirty seconds preparing for the speech and received very high marks from the judges, not only for the use of quotations and facts in an impromptu context, but also because of a very comfortable and persuasive speaking style.
Good delivery comes out of a passion for a subject that extensive research brings.
The easiest speech for a person to give is usually a speech about themselves or about a subject they have intense passion about. When researching for my Most Favored Nation Status paper I originally did not want to see the revocation of the status towards China. After researching the topic thoroughly I began to change my mind and really saw the advantages of sanctions on China. The passion I had towards the subject made me more committed to just getting the message across than to the delivery. But, oddly enough, my speaking improved because it was obvious to the audience that I cared about the subject, which hopefully led them into caring also.