Shakespeare makes the dialogue between Macbeth and Lady Macbeth dramatic by mimicking what the other person says. For instance Lady Macbeth says 'Hark!' to show that she is on edge about the situation and anxiety is also shown. Then Macbeth also says this to Lady Macbeth. This technique is used to show that they spend a lot of time together and that the have a bond further than marriage. Also, because they use each others speech it emphasises that they are both in on Duncan's murder and are both responsible.
Shakespeare also creates tension by answering their questions with questions. For instance, Macbeth replies to his wife's question 'did not you speak?' with 'when?' By creating an awkward tension between the two it suggests that thay are worried that someone could be listening. This fear Is also portrayed in their monosyllabic answers, the quick exchange of dialogue heightens the suspension and shows the urgency of the moment.
Euphemism is used by Macbeth to show that he is too afraid of what he has done to even say it. He says 'I have done the deed' and avoids using the words kill, murder or death. This shows that he is regretting what he has done and makes the audience wonder how he, a murderous savage who sticks his ememies heads on poles, could go through with this task when can't even bear to admit it to himself. It shows that he is emotionally effected whereas Lady Macbeth is unsympathetic when she says 'A foolish thought to say a sorry sight.' However it could also show that Macbeth doesn't want anyone to overhear as this would ruin their plan completely.
Shakespeare adds hidden messages in this passage that the Elizabethan audience would have understood. This is done when Lady Macbeth says 'I heard the owl scream and the crickets cry' to Macbeth. He connects with the audience as it would have been relevant to them and would have been a modern phrase at this time. By doing this he can symbolise Duncan's death subtly in the background noise whilst...