1) The interview discusses how sustained engagement in video game dance emerged through a desire to be part of a social group and experience the fun and status associated with mastery of the activity.
2) Play groups allow individuals to try on different identities and project emotions in a low-risk environment, helping to sustain engagement over time.
3) Motivating learning through play-like activities may help develop competencies while fostering self-determined and sustained engagement through social components like group membership and risk-taking.