pick some wildflowers, place them in a folded tissue under a stack of books, & surprise yourself in a few months when you find them again
perfect for decorating cards, making bookmarks, etc.💛
if there's no flowers, weeds and various plants can be pretty too. make it into a bouquet and leave it on someone's windshield. it'll either make their day or be a mild inconvenience, but it makes you feel like batman, all mysterious and stuff