Attitudes tend to be long-lasting and, because they are based on people's values ​​and beliefs, they are difficult to change. According to Ryan Jnr (1991), consumers always think about what they like and dislike about the brand. It is therefore difficult for consumers to switch to another competing brand. However, this does not prevent companies from striving to change our attitude and, on the contrary, have a positive view of the product. McDonald's new product tries to convince consumers that the new small hamburger is healthy. An altitude may change depending on the environment and circumstances in which the consumer finds himself. Attitude can change based on consumer needs, situational variables, pre-existing attitudes, development of important beliefs, and product attributes. For example, a consumer may believe that eating McDonald's is bad for their health. However, if he is with family and chooses to go to a restaurant, he may be tempted to eat the meal so as not to spoil the family atmosphere. exactly what McDonald's advertising is trying to