As with many of the other things on my list. how you go about posting inspirational notes for people to ind is very flexible.
Simply write something nice on a post-it note and leave it somewhere.
Get more creative with your note if you wish. Share your ideas with us!
Use colored chalk or colored chalk spray paint to write your message on a sidewalk.
Visit my Sidewalk Art Pinterest board for ideas.
I asked the founder of Lovely Indeed if she asks permission before she leaves a kindness note. She indicated that she doesn't and has never had a problem because chalk is temporary. However, if you have any concerns, check with the owners of the sidewalk!
Sites with more information:
Love Notes on My Sidewalk-A Simple Way to Connect to Your Child
Lovely Indeed - Sidewalk Messages