The Fogg Behavior Model explains that for any behavior to occur, 3 things must be present: motivation, ability, and a trigger. If one of these is missing, the behavior won't happen.

Motivation drives action in 3 ways:

• Physical: Basic needs, like hunger, prompt action, such as ordering food online.
• Emotional: Feelings like hope or fear push decisions, like buying insurance out of fear.
• Social: The desire to fit in leads us to join social media or follow trends.

Ability refers to how easy or hard a task is. If a task is difficult, higher motivation is needed. It's easier to simplify tasks than to increase motivation.

Triggers prompt action, like a call-to-action saying “limited collection” or an invitation to a free course.

These factors can balance each other. High motivation might drive action even if the task is harder or the trigger less compelling.^[1] For example, to boost motivation for daily workouts, designers could add a feature to compare progress with friends, tapping into social motivation.