Primary groups are small social units characterized by close, personal relationships. These groups typically include family and close friends, where members interact regularly and share emotional bonds. The connections in primary groups are often deep and enduring, providing support and a sense of belonging. In primary groups, individuals influence each other's behaviors and attitudes significantly. The interactions are usually informal and spontaneous, allowing for open communication. Examples of primary groups include nuclear families, peer groups, and close-knit communities, all of which play a crucial role in shaping an individual's identity and social development.