Smile is the easiest shadaqah/charity. But as you said, we sometimes forget to smile, forget to spread the kindness. Because by smiling, we can be more patient while dealing with life problems, right? Eventhough Many of us know that we all are equal but unfortunately we still choose the person that we will smile at. :( I hope I myself can spread the kindness by reduce a frown on my face and keep smiling to everyone I met. 😊