The actor must perform well, because Polonius, who has already complained about the acting being boring, has been deeply moved by this piece about Hecuba, stating, “Look, where he has not turned his colour and has tears in’s eyes. Pray you, no more.” What Polonius is describing is the emotion which has welled up in the actor’s eyes due to his performance. (Maybe we all could take some acting tips from this guy, hey?)