In February my parents and I were on Splash Mountain when it broke down. I was flying out that afternoon and would not have a chance to use the fast pass the CM gave me. We found a family of three and gave them the fast passes and the family was so thrilled!
Another time my friend and I were on the bus heading back to our resort when we noticed a mother having difficulty dealing with her baby, the stroller, and all her bags. We asked her if we could help in some way,
and she handed us her baby! She got herself organized, took a deep breath, and took her baby back. She thanked us for holding her baby for moment. Not what we expected, but we were happy to help!
My best friend and I spent our birthdays in WDW one year. We were so impressed by the number of strangers who wished us happy birthdays, not just the cast members. Now I try to go out of my way to wish people a happy birthday if they are wearing a birthday pin.