How to add Facebook application to your Samsung Galaxy Pocket?
You can download it through your
Play Store (or
Market if you haven't upgraded it yet to Play Store )
On the search box, type Facebook, and probably the original Facebook app will appears number one on the list.
you can also go directly here if you don't want to search.
https://play.google.com/store/apps/details?id=com.facebook.katana&feature=search_result
Open that, then tap install, then tap accept & download.
Wait until it finish downloading.
then open the app and your done.