1) The document provides tips on how to structure and deliver an effective speech, including starting with a story or question, using a "power of three" structure for the body, and ending with a review of key points.
2) It recommends memorizing an opening, main points, and closing for a speech rather than memorizing the entire text. The less one memorizes, the less likely they are to forget parts of the speech.
3) Experience giving speeches is the best way to improve one's public speaking skills, and the NTU Toastmasters Club can help members gain experience through practice and feedback.