|Setting also creates mood|
To put this writing principle into practice, select a scene from a story you're working on that includes your main character and has a comparatively common setting, like a doctor's office or café. To see how a different setting could enhance the scene, consider an aspect of your character that you want to convey, a hobby, for example, or an avocation. These say a lot about who a person is when she's not "on display." Revise the scene using the new setting. How does the rewrite change the original?
For more on this topic of setting, see the Writer's Digest article "Rescuing Your Story From Cliché," by author and instructor Peter Selgin.