““Remember and Share - Triggers cue the user to take action and are the first step in the Hook Model. - Triggers come in two types — external and internal. - External triggers tell the user what to do next by placing information within the user’s environment. - Internal triggers tell the user what to do next through associations stored in the user’s memory. - Negative emotions frequently serve as internal triggers. - To build a habit-forming product, makers need to understand which user emotions may be tied to internal triggers and know how to leverage external triggers to drive the user to action.””