Produce visual notes for a conference or talk. This is a common exercice in classes and workshops that teach “The Art of Visual Notetaking“.
A typical assignment is the TED Talk by Margaret Gould Stewart, How giant websites design for you.
Writeups:
- A Visual Note-taking Exercise, by Juliana Gregori on Medium.
- Sketching in UX Design, a personal challenge, by Alexis Gilardi on Medium
Sketchnotes by Juliana Gregori 
Sketchnotes by Alexis Gilardi