You know what made my day?
I was in another leave-a-random-person-a-note mood yesterday during study hall, so I retreated to a cluster of cubicles in the media center and tore off a piece of notebook paper.
"Hi! How is your day going?" I scrawled in a handwriting that I hoped didn't resemble my own and stuck it in one of the cubicle's crevices.
This afternoon I came by again to find that someone had taken out the note and written "Pretty good, how about you?"
It was quite thrilling.