Step 1:
Provide background on the theorist of your choice:
Provide a 1 paragraph summary of their theory.
Describe the key terms and concepts from the theory.
Include a visual aid (diagram, picture, hyperlink, video, cartoon, etc) that helps further explaining the theory.
Step 2: Present your fictional character as one of the theorists would do so. Be sure to highlight, footnote or otherwise note the key terms and concepts of the theorist in your description.