These days, Facebook is so popular then other top social networking sites. Facebook allows you to keep in touch with your friends. Nowadays, there are many useful Facebook tricks that you don't know. When you start chatting with someone, Facebook will record your chat history in a log, It keeps a record of every conversation you have. If you have a bad conversation with someone or if you have something to hide your friend or family in chatting, Don't worry today we will shared a helpful Facebook trick that can let you clear chat history with any friends. Now you can chat with other girl without your girlfriend noticed.

See full tutorial here : http://www.softoftechnology.com/2014/06/delete-facebook-chat-history.html
For more tutorial see here : http://www.softoftechnology.com/