I live in a condo complex and myself and a few other neighbors grab mail and bring it to peoples doors that are on the way to our units and I go out of my way for one elderly lady. People love it and are super appreciative. I find its good to keep aware of opportunities. The grocery carts were stuck and a lady was having trouble so I got one unstuck for her. At aldi there is kinda a unique little interaction where you give someone your quarter for their cart before they dock it (the carts have a quarter in them to undock) and vice versa. Makes both folks feel nice.