Designing for personal space in public interior spaces

I think it is difficult to design for personal space in public interior spaces.  Almost all the ways that this can be done involve seating. I did an observational study in the library and observed a variety of seating types.  There are two types of seating arrangements, sociopetal and socieofugal.  A sociopetal setting facilitates social interaction and a socieofugal setting discourages social interaction.  In an instance that you are attempting to promote social interaction you should incorporate sociopetal seating groups, groups where the involved parties are facing each other or where they are side by side.  These types of seating groups encourage interaction.  Like a four top table in a restaurant or cafeteria, or two couches in a lounge or lobby that face each other. If you are designing a place where you do not want people to interact you should create sociaofugal seating groups.  In a sociofugal seating group people would be back to back or use elements to prevent direct eye to eye or auditory contact.  Sociofugal groups would include booths at a restaurant with very high backs or cubicles at an office that give each person their own individual space.