
There are 4 stages of ditance between people
1. Public distance: 360cm adn above [stranger]
2. Social distance: 120cm - 360cm [social ocassion]
3. Personal distance: 45cm - 120cm [know each other but not involved in special bounding]
4. Intimate distance: 45cm - 0cm [family, close friends, life parthner]
When stranger breaks into your personal distance, your unconscious mind will feel offended/ insulted. You will just feel uncomfortable and furious.
-Edward Hall