When Macbeth returns to The Witches in act 4, scene 1, his attitude towards them is demanding, as we see through the following quote:
Answer me to what I ask you.
In fact, Macbeth uses the phrase, "answer me," on two occasions. Not only is his attitude demanding, it is also hurried. He wants his questions to be answered as quickly as possible, demonstrating a sense of urgency in his visit.
In addition, Macbeth does not care about what The Witches must do in order to answer his questions. He tells them, for example, that they can "untie" the wind (unleash strong winds) or rip down churches. Whatever they have to do, do it. Macbeth's attitude is, therefore, also one of indifference to others.
Finally, we also see that Macbeth's attitude towards The Witches is one of trust and a strong belief in their ability to know the future. As Macbeth says to them, he does not know where they get their answers, but he needs to have them. In other words, he believes that The Witches speak the truth, and this is why he needs their help so desperately.
In act 4, Macbeth visits the three witches in order to attain more information regarding his future and legacy. When Macbeth enters the scene, he is in an aggressive mood and addresses the witches as "midnight hags." Macbeth is authoritative and hostile when he initially speaks to the witches. Macbeth proceeds to demand that the witches tell him what he wants to know. He does not ask permission or decorously address the three witches but instead commands them to show him about his future. He also makes it clear to the witches that he does not care about their methods and simply needs to know more information. Macbeth is also portrayed as a desperate man for the way he aggressively demands that the witches tell him about his future. Macbeth not only fears for his life but also is worried that others will usurp his power and ruin his legacy. Macbeth's attitude towards the witches in act 4 contrasts greatly with how he initially approaches them in act 1.