I answered him with one word "easy".
Why easy? ... I just attach the pictures that I edited your definitely very easy to understand.
I'll just give clues steps to make it:
The first step:
you must go to your facebook account.
The second step:
please click the link below:
The third step, and then I just gave a picture that I have to edit myself, hopefully you can do. sanga easy.
hopefully can be useful for you, success always.