Being active gives you not only an excuse to get together with your current friends, but also allows you to meet new people who enjoy an active lifestyle. Whether you're new to a community, workplace or school, joining a fitness program or recreational sports league introduces you to people who also enjoy keeping active. As you spend time with new and old friends, you can't help but develop a variety of qualities, like cooperation. In team sports, for example, you'll learn to alternate positions and make substitutions without relying on a coach.