Groups within a group

All of a sudden i saw sociology when i was at step practice. Well, let me first begin with the new hot topic in sociology. This new unit we're focusing on groups. everyone belongs to a group because people need other people. During step practice I thought on how there are groups within a group. For instance in step practice we work on our routine to prefect it. people perceive us as a group of individuals that work together and  share a common interest. Our role is to be the loudest, funkiest, creative, original step group there is. We also reference ourselves with the other team so we can see what they're doing and how they do their ''thing'' and try to come up with a better routine, that tops theirs. This is known as a secondary group where people share common interest and are goal oriented. Though we're a group, I find myself connecting and communicating with certain people on the team. This is common because we're all in a ''secondary group,'' which is more general but we connect and vibe more with certain people, which sociologically called primary group.