Final answer:
Individuals who enjoy each other's company without any other purpose are likely part of a primary group, characterized by close, emotional, long-term relationships. Over time, secondary groups may evolve into primary groups as relationships within them deepen.
Step-by-step explanation:
People who associate with each other regularly for the sole purpose of enjoying each other's company are most likely members of a primary group. A primary group is typically a small, informal group of individuals who engage in long-term, face-to-face, emotional interactions. These groups fulfill emotional needs and are composed of significant others who have a substantial impact on our socialization, such as family members and close friends.
In contrast, a secondary group is larger, more impersonal, and usually centered around a specific task or goal, fulfilling instrumental functions in our lives. Over time, however, the nature of a secondary group can evolve into a primary group as relationships deepen and become more emotionally significant.
A reference group serves as a standard for evaluating one's own behavior, potentially including one's cultural center, workplace, or family gatherings. Reference groups can offer competing messages that shape our behavior and establish social norms.