I think it's when your bones start to get frail and hurt all the time along with having to take certain medicine and food to help you gain strength back in your bones
Answer 4 & 5 u can also search on the web
you should first determine the purpose of your speech.
you cannot select a topic without knowing the main purpose.
yes the charachter traits help you learn how this person act once you do that you will understand what will motivate them and what won't.