Precautions while using Social Networking Sites
Security and Privacy
Security and Privacy, choose the option Do not allow anyone to tag me in photos. Check the Protect my Tweets box so only people you approve can see them. Similarly, uncheck the Add a location to my Tweets box. Also, click the Delete all location information button to erase geotags from past tweets. Additionally, uncheck the Discoverability box that lets people find you by your email address.