Detailed Summary of Othello, Act 3, Scene 2

Enter Othello, Iago, and Gentlemen:
Accompanied by some gentlemen of Cyprus, Othello sends Iago on an errand, saying, "These letters give, Iago, to the pilot; / And by him do my duties to the senate" (3.2.2). Iago does as he's told, and Othello and the gentlemen go off to inspect some fortifications.

In the previous scene Iago promised that he would get Othello out of the way while Cassio talked with Desdemona, and in the scene before that Iago laid a plan to bring Othello to a place where they would surprise Cassio as he was talking with Desdemona. This six-line scene shows that everything is going according to Iago's plan, although it's Othello who is leading the tour of the fortifications, not Iago.