For example when Macbeth killed King Duncan he was pretending to see a fake dagger that was in front of him and when he tried to grab it wouldn't clutch to his hands. After Macbeth killed Duncan he didn’t want to back to the chamber because he was worried that people would find out and think that he is the one that had killed King Duncan.
Another example is when Lady Macbeth starts to sleepwalk at night and that she is asking herself lots of questions about the blood that is on her hands. She has no idea how she got it on her hands and that she does not know where it came from. Lady Macbeth had written a letter and then put it away in a doar and forgotten about it. Another example is that she was talking like Macbeth was in the room as if he was really with her but was not.
So Lady Macbeth tries and tries to wash it off but it is not coming off because it is permanent. Since she is sleepwalking she also talks to herself and that she speaks as if Macbeth is in the room but he is not because he is dealing with the murder of King Duncan. One other example is the night Macbeth had a banquet with the lords and that night Lady Macbeth talked to Macbeth about killing King