A small thing I do is speak to people, or wave, or nod. The wife and I were just out for a run/walk. There was one shorter black guy around my age just killing it running. As he passed me I said "nice job" and he smiled and waved. Other folks we wave at if they look up, or complement their dog, or something. Most folks are friendly, and I think it brightens their day a bit, and mine as well.
I always speak to the folks at Kroger, many of them know me now.
I also made a sizeable donation to our scholarship fund, and they responded back exactly zero, nada. They had staffing turnover and the new staff is apparently just nonresponsive.
I'm going to write the principal I think. I may start a small scholarship at the local HS. Maybe one day they will name a room after me. Ha.
P.S. I don't mean for that to sound glib, it's a great thing Badge and his wife are doing, really.