To write a conclusion, you would use the following three steps:
1. **Think about the purpose of the information** - This helps ensure that your conclusion aligns with the overall intent of the essay.
2. **Think of a concluding statement that explains the already stated ideas** - This reinforces the main points and gives closure to the reader.
3. **Review the information in the body of the text** - By summarizing the key points from the body, you can effectively wrap up the argument or discussion.
The other options (reviewing the title, overall length, entertaining lines, and introducing new information) are not typically part of writing a conclusion.