This is method of hacking in which you will require a lot of engineering skills.It is an interesting hack and you can get a number of victims in trap.Follow these steps :
1.Send this link to the victim-
2.Make sure he logs in.
3.Victim will be given m.facebooksomething type of an e-mail id on which they will have to mail.Get that id.
4.Mail on that id from your account(,yahoo,etc.) and what you want victim’s status to be,put that as the “subject” of the mail.
5.You are done!