My cousin went to a Quaker high school, so when I went to her graduation, I had the opportunity to attend a Quaker service.
At a Quaker service, everyone is silent until they have something meaningful to say. Then, they say it. Since it was the service before graduation, a fair amount of parents spoke, including one person who kicked off the service by telling a potty training story about his son (I think there was a moral to the story, too...). His son took it well.