10. Adapt jargon for your audience.

Think of a topic you know well (e.g., a sport, a hobby, or an academic subject). Write an email to a colleague who is also an expert on the subject. Include at least six jargon terms that flow easily into the context of your email.

Now assume that you are sending the same email to someone who is not at all familiar with the topic. Revise your original message to make it appropriate for this reader. Which email is longer? Which is more effective? Why?