Personal privacy, is not willing to open, no stranger to inquire about the secret, personal or private things.
In international social life, people generally pay respect individual privacy, and respect the privacy, as if a person in interpersonal skills have upbringing, respect and understanding can be an important sign of object interaction.
In international social life, how many, the personal income has been foreigners as their faces, is taboo others directly or indirectly. Remove wages, those who reflect personal economic conditions, such as tax amount, problems and bank deposit, the stock returns and housing area, car models, resorts, apparel brands, entertainment, etc, and personal income because, do not fit.