Ensure that you understand the implications of keeping your Twitter account and tweets private before making the decision to do so. When you choose to keep your tweets private, other users will have to request to follow you, and you will have to confirm all requests before they will be accepted. Only followers who have been approved will be able to see your tweets. Other users will not be able to retweet your messages unless they follow you. Moreover, only searches done on Twitter by your approved followers will return results for your tweets since they will not appear in any Google searches at all. Your Twitter profile will just display your name, profile picture, and bio information at this time. Unless you send them to your approved followers, any @replies you send will not be seen by anyone else. For instance, if you tweet a celebrity, they will not be able to see it since you have not given them permission to follow you. Anything you tweeted when your account was open to the public will now be hidden and will only be visible or searchable by your approved followers, as opposed to the general public. Finally, to share permanent links to your tweets with your authorized followers, you must first have them approve your account.