People are generally motivated by:
Affiliation (related to belonging to a group), Power (related to having control over a domain, one’s actions or others’), and Achievement (related to improvement, growth, and self-realization).
In this sense, you can:
-make it explicit that only those who put an X amount of work can be "part of the group"
-give responsible for a specific task or area (even better if it is an area they wish to learn/gain experience on) and make it public in a website, dashboard, at public events, etc.
-discuss and define a common reason for why the work is important to the people in the group (what is the mission/purpose/the why) and define a common vision (what does success looks like and what are the consequences for different stakeholders)
Publié le 20/03/18