Here are the steps you need to follow to write an impressive expository essay. 1. Choose an engaging topic. The first step is to choose an expository essay topic. This step may resemble expository essay examples. If you are looking for an expository essay example, you can read some below: The Impact of Social Media on Society. Social media has become an integral part of modern society, influencing the way people communicate, share information and perceive the world. This essay, An Explanatory Essay, asks for a critical explanation of a specific idea, theory, or topic. Our expert advice can help you write a well-structured and informative article. If you are writing an expository essay on a, an essay that explains a writer's ideas by defining, explaining, informing, or elaborating on points to allow the reader to clearly understand the concept. Many of your future writing assignments in the academic workplace will be explanatory, explaining your ideas or the meaning of a concept or action. An explanatory essay helps the writer.