Be responsible in all your encounters with others. In person as well as when using social media. If you don’t want your grandmother, pastor, or future employer to see it or know about it, don’t do it. By the same token, if it has to be a secret, you shouldn't be a part of it. There are many in the world who would like you to believe their deception about “privacy” or “secrecy”. Many people fall for these deceptions. To their horror they discover that their privacy has been compromised in some way. A credit card number copied and used without consent of the owner. A photo promised to disappear like magic, suddenly appears on the internet for the world to see. Classified Government documents are leaked. Private communications are revealed. The simple solution is: If you don’t want anyone to know, don’t do it.