Westin postulates four states of privacy. Solitude is being free from observation
by others. Intimacy refers to small group seclusion for members to achieve a close,
relaxed, frank relationship. Anonymity refers to freedom from identification and
from surveillance in public places and for public acts. Reserve is based on a desire
to limit disclosures to others; it requires others to recognize and respect that desire.
The states are the means by which the functions (purposes or ends) of privacy are
achieved. The states are, in effect, the “hows” of privacy.