jxrtes and I have been working on an improved translation. Here's what we have for that section:

2.4. Physical level.

The way collocutors are arranged -- either opposite each other or next to each other -- plays an important role in communication. The importance in communication of such factors as the spatial arrangement of the communicators was explained by Sullivan. Being opposite the partner in communication is advantageous to negativists. Positivists communicate better when located beside or at an angle to the collocutor - in such a way that their gazes are directed off to one side.

An involuntary decrease in the level of confrontation due to being seated side by side is a standard method used by psychologists when working with married couples experiencing problems. By sitting side by side and addressing an imaginary third collocutor, spouses gradually decrease the severity of the conflict.

Practical psychologists, who study nonverbal signals, identify an entire class of gestures demonstrating a critical attitude toward the collocutor. For example, hand at mouth. Such gestures are usually treated as closed. From the socionics point of view, this is better explained not by introversion, but by negativism.

Negativism brings with it palpable bodily tension. If we depict (for comparison) this pair of opposites as charging/discharging, then for negativists the first dichotomy is an automatically started process. Negatively charged types are easily over-excited (especially if they are also dynamics). Therefore, to compensate for negativism, physical exercises are recommended for relaxation, smoothening the internal capacity. But for positivists it is better to perform a system of physical exercises to excite and aggravate their physiological processes.

Negativists tend to be quite tense, and should practice relaxation exercises. Positivists, on the other hand, are recommended to exercise to "wake themselves up", as it were.