In BJ Fogg’s behavior model, ability is one of the three key factors that determine whether a person will engage in a desired behavior. The other two factors are motivation and trigger. Ability refers to a person’s perceived ability to perform the behavior in question. If a person believes that they have the skills, knowledge, and resources to perform the behavior, they are more likely to do so. Ability can be increased through a variety of means, such as providing information, training, and support. For example, if a person wants to start exercising but doesn’t know how, providing them with information about different types of exercise and how to get started can increase their ability to perform the behavior.