Modesty
Private situations are generally limited to people who know each other well, such as life partners, spouses, family members, or close friends.  There are some places that are semi-private, which include those less well-known, such as acquaintances and co-workers. Situations may also be semi-public, including others not known but limited to those with a shared characteristic, such as age or gender. Public places are open to all. Some social roles allow exceptions to rules of privacy, such as when receiving medial examination or treatment.