Abigail, looking about in the air, clasping her arms about her as though cold: I-I know not. A wind, a cold wind, has come. Her eyes fall on Mary Warren.
Mary Warren: Abby!
Mercy Lewis, shivering: Your Honor, I freeze! (108)
I understand Proctor's frustration in Act Three, because I feel the same way. It is so blatantly obvious that the girls are following the leader. I can imagine Abigail telling her girls to repeat everything she does, which to me seems too childish to be believed, but it is believed because of the mass sentiment of fear. This fear is both individual and communal. It is individually because everyone is scared that they are either going to be persecuted or scared of being touched by Satan. In my opinion, one reason for why these witch trials happened in Salem was because it was a Puritan community. Puritans came to America for their 'city on a hill', the perfect community. Seeing a flaw in this perfect society caused hysteria.
Mary Warren felt pressure to be like the other girls and follow Abigail by blaming Proctor once she realized Danforth was believing everything Abigail and the the girls were doing. It makes sense for young girls to follow the crowd. It is seen everyday at all ages of girls, just not to the extent of lying in court. People are scared of being out casted and alone, and in the girls of Salem's case, dead.
I think the reason people, including myself, became frustrated with the situation of the Salem With Trials,with the large number of people following the liars, is because some of us still hope that deep down, everyone has some good and that it is human nature to be good. I do not think that is true though, I agree with Thomas Hobbes' belief that self-preservation is the motivating factor behind human nature. Abigail's actions were in vengeance, but it seems to me that everyone else that pretended to be affected by a witch was self-preservation.