You can create and share personalized greetings with your Facebook Friends.
Tap on the "Birthdays" tab on the bottom menu.
This will take you to a list of your Facebook friends who have upcoming birthdays. Choose a friend from the list by tapping on their name, or search for a friend by tapping the magnifying glass in the top.
Browse through card categories by swiping the bottom menu (e.g.: Birthday, Baby, Love) and scroll through the greetings to find a card. Tap the blue Smiley on the top right to send an emoticon.
Editing a greeting:
Once you have chosen a card, tap on a photo to select it. Double tap to center it. When done, tap the Check mark on the top right.
This will take you to the actual Facebook post. You can w rite something on the post. Press "Share" to post it to your friend's Timeline.
Note: You may see a notification asking if Sync.ME can post for you on Facebook. You need to allow this in order to send the greeting to your friend.