" If we want them to buy a box of expensive chocolates, we can first arrange for them to write down a number that’s much larger than the price of the chocolates. If we want them to choose a bottle of French wine, we can expose them to French background music before they decide. If we want them to agree to try an untested product, we can first inquire whether they consider themselves adventurous. If we want to convince them to select a highly popular item, we can begin by showing them a scary movie. If we want them to feel warmly toward us, we can hand them a hot drink. If we want them to be more helpful to us, we can have them look at photos of individuals standing close together. If we want them to be more achievement oriented, we can provide them with an image of a runner winning a race. If we want them to make careful assessments, we can show them a picture of Auguste Rodin’s The Thinker. "

― Robert B. Cialdini , Pre-Suasion: A Revolutionary Way to Influence and Persuade