Firstly you choose your topic which is suitable for you and which is easy for you. then you should make your point clear and then try to write speech in your own words which is best for you because if you write in your own words then you will easily understand the topic and easy to learn it. then, you should give a proper points on each part of your speech and try to use statics in your answer which makes your speech more memorable. after this part is over you should give a proper ending by giving a conclusion from your speech.