This label can be stuck to a basket or bucket that contains pop sticks with students names on them. Before my class go anywhere in the school, my line leaders choose a secret walker from the container. They then watch that person while we walk around the school. When we return to the classroom they say wether or not the secret walker deserves a big fuzzy (you could use stickers or other rewards).
If the secret walker talks or acts inappropriately they do not receive the fuzzy and remain unnamed.
This works so well as all students walk quietly incase they are the secret walker. We get so many class compliments!