Priming can be linked with the mere exposure theory. People tend to like things that they have been exposed to before. Mere exposer theory is used by advertising companies to get people to buy their products. An example of this is seeing a picture of the product on a signboard and then buying that product later. If an individual is in a room with two strangers they are more likely to gravitate towards the person that they occasionally pass on the street, than the person that they have never seen before. An example of the use of mere exposure theory can be seen in product placements in movies and TV shows. We see a product that is in our favorite movie, and hence we are more inclined to buy that product when we see it again.