The stupidity of the commoners works to Marc Antony's advantage as Antony attempts to lead the common citizens into his way of thinking by using many clever ways. The intent of Antony's plan is to convince the common people that Cassius, Brutus, and Casca were wrong to kill Caesar and they were just jealous. Just a few examples of his cunning schemes include using sarcasm and fake sympathy, appealing to the Plebeian's greed, and taking sentimental and emotional approaches. He is also able to weave reverse psychology into almost each of these ideas.
One way Antonoy had of turning the crowd to his side was appealing to what almost every person wants: money. As soon as Antony mentions the will in which Caesar had supposedly left each individual man 75 silver coins, one man in the crowd yells out, "Most noble Caesar, we shall avenge his death!" Would he have felt the same way if not for the will, which in all probability is most likely some creation of Antony's mind? Also, after mentioning the will, Antony tries to act like he shouldn't have told them by saying, "Have patience gentle friends, I must not read it.
It is not proper that you should know how much Caesar lov'd you." Antony says that with the purpose of making the commons want to hear the will even more, which is reverse psychology. By bringing up this seemingly insignificant object, Antony had once again successfully turned the mindset of many commoners.
Another manipulative way Antony had of swaying the crowd was by taking a sentimental approach. One especially good example of this is when he says, "O judgement, thou art fled to brutish beasts, and men have lost their reason. Bear with me, my heart is in the coffin there with...