Table 2. Description of social activity types.

Activity	Definition and Examples
Altruism	Social activities that involve doing for others or providing a service in order to help. Examples: volunteering, teaching, caregiving/babysitting, and planning or organizing for social group
Creativity	Social activities that involve imagination and the creation of different realities. Examples: watching theater, singing, painting, crocheting, learning about arts and craft, traveling and sightseeing, and bird watching.
Game	Social activities that involve playing games with varying levels ofchallenge, chance (winning or losing), and competition. Examples: problem solving, geocaching, gambling, bowling, and playing tennis, golf, bingo, or videogames.
Motion	Social activities that involve movement and/or altering one's perception. Examples: dancing, bike riding, exercising, swimming, hiking, kayaking, and taking aerobics and Tai Chi classes.