What are some ways that I can identify rhetorical devices in my research paper?

I had done a paper last week and now my instructor wants me to identify the rhetorical devices that I used to make my arguement. The paper that I wrote was Analyzing three sources and write what the author believed on a certain topic. It is one of many steps that I have to do before writing my research paper.

What are some ways that I can identify rhetorical devices in my research paper?
Rhetoric means a use of language that creates a "Literary Effect", but often without regard for literal significance. So you have to revisit your writing, and see what you added, that was not necessary, and then to remove it. You may have also written something more than once, that you, will have to remove as well. Good Luck.