The other thing I have going is that to me it is natural because I've been doing this sort of thing for so long. I've left over 300 books in public for people to find. I've left over 100 pieces of art too. My favorite is the curb drop. Drop it while you're walking and just keep on going. Very rarely does anyone notice what you've just done.
Tonight there's another free painting out there somewhere. Hopefully picked up and brought to a good home.