Writing in the Philadelphia Inquirer, Mark Bowden has an excellent commentary entitled "The lost art of influence." At one point he writes, "Being persuasive is hard, because it demands you consider that you might be wrong. To refute opposing points of view capably (and winningly) you must first really hear opposing points of view."
Admitting that you might be wrong and really listening — the two traits (or skills) are also integral components of unlearning. Therefore, I'd argue, that if you want to enhance your skills of persuasion it would also behoove you to enhance your unlearning skills.
Of course, I'm open to your ideas and I promise I'll really listen if you disagree with me.