I have ferried turtles, helped with flats, given directions and even trued wheels for people during my x-country tour. A few years ago, during a tour, I saved some of my food for a couple who was behind me. They had planned to camp at the same place but did not make it there before the store closed. They ended up pressing on up the road without my knowledge. Still, I thought it was a nice gesture on my part. Gave away some extra spinach to another couple a few days later. In 2000, while touring in Yellowstone N.P., I gave a German woman my ACA map that I no longer needed.
I am sure if I sat here for a while I could come up with more stuff.