For example, consider who the narrator of the book was. Was it a third person who was just observing the action, or was it one of the main characters. How did the way the narrator told the story make it enjoyable. Was the language of the book descriptive in any special way with exotic images, emotionally charged language, or rhythmic cadence? Did the author use any special technical language or references that were appealing or interesting? How did the characters speak? Did they have noticeable accents or use colorful language?

There are any number of ways and words to use to tell a story. What were some of the ways and words used to tell this story that made it interesting?

Does this help?

I am afraid either you don’t pay attention in class (in which case, you’re naughty [!]) or your teacher/tutor is crap and you should report them. No-one can be expected to perform such an analysis until they have been taught the necessary skills and learned the correct terminology.

May I suggest that you go back a year or two in your English course?