Line of sight: in scenes where an elder character talks to a younger one the storyteller looks to the left of the stage (seen from the audience), and in scenes where a younger character talks to an elder one the storyteller looks to the right of the stage.
視線：上位の人物が下位の人物に話しかける場合には舞台下手を向き、逆の場合には舞台上手を向く。