The distance of 0-0.5 meters is suitable for people who have intimate relationships, occupations that require physical contact, people who participate in social occasions, and people who have security checks.

1. Close people: including family, friends, lovers, etc. This distance is usually used for daily communication, interaction and intimate behavior.

2. Occupations requiring physical contact: such as doctors, nurses, physiotherapists, etc. This distance is for physical examination or treatment.

3. People who participate in social occasions: such as parties, meetings, training, etc. This distance is used for communication and interaction, but it does not involve physical contact.

4. Security personnel: such as airport security, customs inspection, etc. This distance is used for physical inspection and safety inspection.

The concept of spatial distance:

Spatial distance also reflects the psychological distance and relationship between two people to some extent. There are also four kinds of spatial distances in psychology, which represent the safe distance between different relationships. Everyone has their own acceptable space distance for people with different relationships, so if the relationship is not very good, try not to invade other people's space unless your relationship is slowly warming up.

Many times, the relationship between people can be judged by spatial distance. Of course, sometimes people will adjust their personal space to dominate the environment, but many times, when we enter a distance acceptable to others, others often feel uncomfortable and want to avoid it, because at this time, they will think that this is an invasion of their personal space.