Social order refers to the stable state of society in which existing social structures and institutions are maintained. It is achieved through a network of roles and expectations where individuals fulfill their duties, ensuring that social interactions remain predictable and consistent. This cooperation is fundamental to the functioning of any organized society.

The perception of crowding is a social and psychological construct influenced by environmental factors, personal expectations, and the nature of the interaction. While situational context and predictability matter, the demographic characteristics of others, such as sex or race, are not standard determinants of perceived crowding.

Life events are major milestones or unexpected occurrences, such as marriage, career changes, or personal loss, that disrupt an individual's established routine. These events serve as turning points, forcing people to adapt their identities, roles, and future plans. Sociologists study these events to understand how personal biographies intersect with social structures and influence the life course of individuals across different stages of development.

Erving Goffman coined the term 'response cry' to describe involuntary exclamations that people make when they experience minor mishaps or surprises. These vocalizations serve as social signals to others, indicating that the individual is aware of their minor error and is in control of the situation.

The internet facilitates 'time-space compression,' a concept where the constraints of physical distance are minimized by digital communication. By allowing for instantaneous interaction between individuals regardless of their geographic location, the internet fundamentally changes how social relationships are formed and maintained, effectively shrinking the perceived distance between people and accelerating the pace of social exchange.

Non-verbal communication encompasses all forms of human interaction that occur without the use of spoken or written words. This includes body language, facial expressions, gestures, and the use of personal space (proxemics). These cues are essential for conveying meaning, emotions, and social status, often providing context that words alone cannot capture in social interactions.

The compulsion of proximity refers to the human tendency to seek face-to-face interaction despite the availability of modern communication technologies. Sociologists argue that physical presence provides richer social cues and a sense of connection that digital communication often lacks, driving people to prioritize in-person meetings for significant social exchanges.

Social processes are categorized as associative or disassociative. Associative processes, like cooperation and assimilation, bring individuals together. Disassociative processes, such as competition and conflict, involve individuals or groups working against each other to achieve goals, often leading to social distance or separation.

A 'model personality' refers to the set of personality characteristics that are most common or typical within a specific culture. It represents the internalization of the dominant values, norms, and behaviors of that society. While no individual embodies every single cultural trait, a model personality reflects the majority of the core cultural traits that define the social group's identity and expectations.

George Herbert Mead developed the theory of social self, proposing that individuals develop a sense of self through social interaction. He identified 'significant others' as specific people who influence an individual's development, while the 'generalized other' represents the internalized expectations and attitudes of society as a whole.