Recall a time when someone came to your aid, stood up for you, showed you an unexpected kindness. Hold on to those memories, for they are dear. Strive every day to make someone else feel the way you did in that moment.
For me, the one librarian who inspired me and encouraged me to go to library school and become a librarian. She saved my life in a very dark time, and I try to repay it when I serve others.