Public figures can be celebrities such as singers, actors, actresses, dancers, youtubers, etc, but also, public figures can be writers, polititians, scientists, inventors, etc.
After watching this video tell the class:
Who is the person you admire the most and why?
Talking about Fame and Fortune is a different question. Watch this video which will help you find the correct expressions when talking about celebrities.
Let's go over the questions below so that ideas flow more easily when you meet up with your friends and you can work out vocabulary problems beforehand.
Watch this video of Will Smith explaining what it is like to be famous.
Watch these commencement speeches at the universities of Stamford and Harvard by J. K. Rowling and Steve Jobs. Explain how they became famous.