Do you Reveal all

It is true that no one can live in isolation. Studies have gone to show that people who do not have other people to assosiate with normally have a hard time assosiating with people whern the need arises. At some point in  your life you will need to have that close circle of friends that you share your life with. This raises the question do you really need to tell them everything, or are some things better left under the carpet. This is something that i have been asking my self for years now. Is this regarded as secretivity  or is just privacy. It is commonly found amongst girls that they share each and every detail of each others life. They are constantly on the phone talking to each other about what they are doing or what just happend. With the aid of social networking everybody gets to know everybody elses business in a matter of minutes. Thus it would be intresting to know if this is mere living life or the essence of private lives has been lost. Do you tell your friends and family everything ?