There are several things. One is being nice to people and making a humorous remark to lighten someone's day. Because I know what it is like to be snubbed or excluded because you are not part of a certain clique, I make an effort to make everyone feel included. I have a diverse mix of friends and aqaintances and I love it that way and I hope that I am setting a good example for my children so that they will form friendships not by superficial things like looks, wealth or connections but by what's in someone's heart and whether or not your personalities mesh.
Also, because I am a mom who has a 7-year old son with high-functioning autism spectrum disorder, I know how scary it is when you first get the diagnosis. It can also be very socially isolating and very frustrating to round up services and figure out how to help your child, so I do make myself available to those moms who are walking down the same path that I have been down. I've been blessed to receive so much help from others in my community that it is a pay-it-forward kind of deal.
I also do some of the things that you have mentioned in your post if I see a need but I just try to be a good, open-minded, non-judgmental person. I am the one that I have to go to sleep with and wake up with in the morning so I do all this for no other reason than to have a clear conscience at the end of the day.
Such a wonderful idea for a post. Thank you for thinking about it.