Yarrow talked and sang before the students and staff during a morning assembly, inviting a small group of students on stage to show them how the Peaceful Schools Program works and to sing with him. He encouraged students to conduct the Four-Way Test in speech and action.

The test used by Rotarians — who helped developed Peaceful Schools with Yarrow — encourages people to ask if something it true, fair, beneficial to all, and whether it will build goodwill and better friendships before speaking or acting.