As it turned out, Mikey hadn't just written one clique swap note, but actually more than one.
And right at that moment, someone found one of the other ones. It was stuck to the floor.
The person picked it up and read it out loud:
Clique-swap. I wish to swap my clothes, friends and social clique with the next person I see.
The person thought that the note was weird, then crumpled it up and threw it away. The person turned to head to their locker, but suddenly felt strange when they laid eyes on another person walking through the hall.