i noticed you have your speech written on paper (i could hear you flip the page). try writing it on note cards, so you can just drop them after your done with it, laughing at the right time is good, but don't laugh to much, sometimes your voice would fade out, and it would get hard to hear. talk slower, and don't pause as much in between phrases. the wrods um, like, and so are a big NO. if you use those and put in bigger words, people will not appretiate your speech. make your speech flow, not so choppy. have a glass of water handy so if your mouth gets dry stop at the next sentence, or paragraph, to refresh your mouth so it doesn't feel all cottony. other than that you should be fine.