Repetition: Circular conversations about boots, hats, and suicide, the recurring arrival of Pozzo and Lucky, and the message that Godot will come "tomorrow." The phrases: "Shall we go?" "Yes, let's go." The only real difference noticed is the change of leaves from the 1st act to the 2nd act. At the beginning of the 2nd act, there are a few leaves, although it had only been the next morning.