Team-building activities encourage participants to build camaraderie, improve communication, develop collective strategies and establish trust. The successful completion of most team-building tasks requires cooperation, listening to others, sharing of ideas or the willingness to try new approaches. Most team-building programs aim to help participants see how they can apply similar skills and techniques at work, in school or in other everyday situations. Small groups, usually defined as fewer than 12 people, are ideal for most team-building activities.