Public speaking..........fouwh

Assalamualaikum...
Today my teacher asked me to give a public speaking in front of all my course mates. I had prepared to be called actually.

here are some tips to have a good public speaking such as: (get enough preparation)

-know your audience
-take challenge to face risk. never fear of the failure.
-practice a lot such as in pronouncing and have a good vocabulary.
-thinking positive about yourself/ have high self-esteem

many2 more but I haven't time to type them...