What do the four types of seating look like in the interpersonal space, and what do they mean?

I don't know if this is what you want :

The interpersonal relationship and the situation in which the two parties are involved determine the scope of their own space. Dr. Edward Hall, an American anthropologist, divides four zones or distances, each of which is commensurate with the relationship between the other. People's individual spatial needs can be broadly divided into four distances:

Public distancing, social distancing, personal distancing, intimate distancing.

The public distance can be as far as 360cm. It is generally used in both speakers and audiences, in extremely blunt conversations with each other, and in informal situations. In business activities, it is extremely important to choose and maintain an appropriate distance according to the object and purpose of its activities.

Social distancing. This goes beyond intimate or acquaintance relationships to a more formal relationship of a social or ceremonial nature. It has a close range of 4 7 feet (meters), a level of distance that people generally maintain in work environments and social gatherings.

Personal distance, about 45cm to 120cm, is like reaching out to touch each other, although they know each other, but there is no special relationship. This is the distance that is most often maintained when having informal, personal conversations. When talking to people, do not stand too close, and generally keep it away from 50cm.

Intimate distance, which is the smallest or almost no interval in interpersonal communication, that is, what we often call "intimacy", its near range is within 6 inches (about 15 cm), and its far range is between 6 inches and 18 inches (15 cm 44 cm), and physical contact may be manifested as holding arms or knee-to-heart talks, still reflecting intimate and friendly interpersonal relationships. It can be disturbing when someone who does not have the right to enter the intimate distance intrudes into this range. On crowded buses, subways and elevators, intimacy is often violated due to crowding.

As a result, people try to psychologically protect their spatial distance as much as possible. In the West, when you're in an elevator or on public transport, there are some unwritten rules that must be followed: you can't talk to anyone, not even people you know; Your eyes must always avoid eye contact with others; There must not be any facial expressions; The more crowded people are, the less your body can move at will; In the elevator, you have to look at the floor number above your head, etc.

I don't know much about this, so you'd better find someone professional.