Macbeth and Banquo respond differently to the witches’ predictions. After becoming Thane of Cawdor, how does Macbeth react to the thought of becoming king?

Macbeth begins to think the Witch's suggestions may come true. He thinks that perhaps the witches are acting for his good fortune. Banquo is still skeptical, can the Devil speak true? He thinks Macbeth may yet come to the crown but he still thinks the witches are evil.