Being persuasive and manipulative are two distinct things. Persuasive is putting a bow and a ribbon on your argument. Manipulation is trying to control the person into thinking the way you by any means necessary.
Persuasive comes from honesty, heart and passion. While manipulation is controlling and dishonest. One is upfront and the other is not.
Anti-smoking adds are very manipulative because they use fear tactics and twist the truth on many occasions. They are trying to get you to see what they see instead of simply presenting the truth in a way that speaks to people.
Also, most of the information on getting better with women socially is
pure manipulation.