The main reason for Iago’s hatred towards Othello is because Othello gave the lieutenant position to Cassio instead of him. Iago first started using his manipulation on Roderigo. He promises Roderigo that he could help him to get Desdemona but Rogerigo has to ‘put money in his purse’. As Roderigo leaves, Iago said ‘thus do I ever make my food my purse.’ This is an example of Iago tricking Roderigo. He used Roderigo’s lust for Desdemona and his foolishness to get a hold of his money to use it himself.
Iago is aware of Othello’s trust in people. He realised that ‘ the moor is of a free and open nature’. This is a personification of his character as being honest and trusting. It is because of Othello’s free and open nature, he can be easily be ‘led by the nose’. This is an example that shows Iago’s way of manipulating people and his understanding of people’s character.
Iago also showed his skill of manipulation in the scene where he encourages Roderigo to pick a fight with Cassio while he’s drunk. Iago found another weakness in cassio who is easily drunk. He used that and the way Cassio is very protective of his honor and reputation. Cassio end up humiliating himself and lost his position. Throughout the scene no on knew who started the fight and no knew that Iago was behind all of it. This is an example that shows Iago is a clever character. He manipulated everyone also he got closer to Cassio by pretending to be a friend and earned his trust.
Iago is in control of everything, almost like he is the director of the play. He is a smart, evil character who uses prejudice, jealousy and his ability to manipulate situations to get what he wants. By manipulating Roderigo, Othello and Cassio, he destroyed other’s lives for his own profit.