How does iago manipulate Roderigo in the lines 329 - 370?

Answer 1

Iago manipulates characters by getting close to all of them and playing on their weaknesses while they refer to him as "honest" Iago, thus furthering his control over the characters.

Answer 2

Roderigo complains that he has spent all his money to get beaten up by Cassio. Iago persuades him to stick to his plan, by telling him that he has caused Cassio to be cashiered, which will remove a rival for Desdemona's hand.

Answer 3

He gives him an awesome bj