You start with a customer. They want a specific result. If they get it, they will be happy.
You look at the exact steps your customer needs to take from now (not so happy) to get to happy, and give them that with no strings attached
Ita like being in front of restaurant, hungry until you smell the food, then very hungry, and then the free sample clinches the deal. Getting closer to the end result increases the desire to achieve the result.
Manufacturing desire by this approach.