Literary elements of Franny and Zooey by J.D. Salinger?

I have to do a book report on "Franny and Zooey" by J.D. Salinger and I have it all done except for finding 3 literary elements. literary elements include irony, foreshadowing, metaphor, simile, etc. if anyone can find examples in the book with a page number, I would greatly appreciate it!