Here is another psychological trigger I got from reading Seth Godin.

People don't like to be wrong.

When you tell them a story, try to make it reinforce the message that they have been right all along. This works well with deep values like morals or whether God exists, but it also includes superficial ones like an opinion about so-and-so.

For marketing, one form where this trigger works well is to advertise something negative, deliver a positive message about it, make the audience feel it has been right all along, then hit them with the offer.

For instance, on a superficial level, if your target market believes that Obama is the best thing since sliced bread, advertise a position to them that he has some serious shortcoming. Then tell the tale ending up proving that the shortcoming was only an impression and the truth is that he is even stronger than thought. Any Obama supporter will feel he was right all along, despite being hooked into the tale by the doubting Obama headline. Now that he feels good and knows you are on his side, trust has been established and he is more likely to buy off of you, so hit him with it.

You can use this approach with any issue, not just politics. Obviously you have to target your market since there is no way to please everyone. But the people you get are well gotten.

After all, they were right all along, weren't they?