Othello 1

Iago had begun to take some new techniques and methods under his belt.  First, he is actually straight forward this time.  Every other lie that he has ever fed to Othello was one that was implied but no factually stated.  Shakespeare makes Iago seem like a suspicious little creature in the beginning of Othello; however, as the play progresses, it seems as though Iago has become much more confident in his system of lying.  "With her, on her, what you will"(IV, i, 45, Shakespeare).  This quote is an example of the upfront and outrageous statements that Iago has started to use.  This method of straightforwardness amplifies Othello's certainty that Desdemona is surely doing him wrong.  
Additonally, he begins a new technique for manipulation by allowing others to say what he would say. Hearing Cassio describe his feelings about a women that he has obviously has interesting situations with leads to Othello being very upset.  He is upset, however, because he believes that the women that Cassio is talking about is Desdemona.  Cassio was in fact talking about Bianca and Iago told Othello that he will be talking to Cassio about Desdemona; therefore, Othello only assumed that the talk was about Desdemona.