Consider at least two theories of truth, figure out which one is most likely to be correct, and write a theory saying which theory you picked, and explaining in detail why you picked it, why you didn't pick the other one, and what's wrong with at least one argument for that other theory.
When you think you have a good understanding of the issues involved in the problem of truth, take some more "think" time do your best to come up with the most logically justifiable answer you can think of. When you have thought about the issue, write a paper explaining the problem, explaining what you think about the problem, and saying exactly why you think what you think.