The theme of reputation and identity is shown in the scene where John Proctor confesses to cheating on his wife with Abigail. He does this because he realizes that his reputation in the town is not important compared to the freedom of his wife. This is the opposite of what his identity has been though the entire play, as now he cares about helping his wife instead of his good name.
The theme of hysteria is shown in the scene where Abigail and the girls pretend to see Mary Warren's spirit as a bird. In reality, they do not a see a spirit, and they only do this to cause commotion and get the attention off the fact that Abigail is lying about seeing withcraft in the woods.
I am going to tell everyone the Goody Proctor is a witch so I can have John to myself!
The scene where the girls are caught dancing in the woods is an example of the theme of lies and deceit. The girls lie and deceive other people into thinking that other members of Salem are witches and they were being possessed when they are caught, and also lie about what they were doing in the woods.
Martha and Giles Corey are witches!
The scene where John Proctor forces Mary to confess that there was no witchcraft is an example of the theme of revenge. He does this to get back at Abigail, and potential prosecute her, since Abigail but Elizabeth Proctor in jail.
Abigail wanted all of us to lie about seeing the devil!
The scene where Abigail plans to turn in Elizabeth Proctor and say shes a witch is an example of the theme of lust. Abigail does this because she wants John Proctor all to herself, and getting rid of Elizabeth Proctor would do so.
In the scene where Thomas Putnam accuses Giles Corey and his wife Martha Corey to be a witch, the theme of greed is shown. Putnam is only accusing them of being witches so that he can take their land, showing that he is a greedy person and willing to kill others for assets.