Answer:
I haven't read this book, but I can explain how to do this.
Step-by-step explanation:
So, just pick a character otehr than Anne and write what they think about Anne. For example, you could say, Mr. Frank thinks that Anne is a silly little girl and just likes to goof around. Then include an example of why you think that. Take a quote from the book and put quotations around it. Include a couple of quotes and say, This is why I think Mr. Frank think that blah blah blah.