What is moving of tassel at graduation called?

Traditionally, the moving of the tassel at graduation is called, "turning the tassel" or "the turning of the tassel ceremony." It symbolizes one's transition from candidate to graduate. Standard protocol in the US dictates that the tassel be worn on the right side of one's mortarboard at commencement and then, during the ceremony, moved to the left side. Teachers and administrators at commencement place their tassels on the left.