I have been taking daily weekday walks with my mom around a housing project close by to where we live. This enclosed housing community has a sidewalk encompassing it for people to walk on. On this sidewalk, every several feet apart, someone had drawn/created messages and activities (such as: "Do 10 jumping jacks," "Sing a song," "Say one thing you like about yourself," etc.) using sidewalk chalk upon the sidewalk.
It made our walk that much more joyful and entertaining and we greatly enjoyed it. We do not know the person who did this, but whoever you are, thank you!!