Summarize what you learned from one of the unit's optional learning activities that reinforce key concepts; or List 3 things you learned from this unit. You're encouraged to cite page numbers from the eTextbook and minute marks in videos to support your thoughts; or Share a personal story relating this unit's content to your past or current work or share examples of how it applies to your future business ambitions; or Ask a specific question about unit content for your colleagues' consideration..Designing Business Messages