Do everything with Zest.
Don’t answer this email in a mediocre way. Answer this email with zest. Cook this meal with zest. Dress for this lunch date with zest. Create this campaign with zest. Create this presentation with zest.
In anything you do, ask yourself, “Am I doing this with zest?” If not, go take a break, do whatever you need to do to revive yourself, and come back.