As of Version 1.4, you can create and share personalized greetings with your Facebook Friends.
Here’s How:
Open the side bar and tap on "Birthdays".
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. You can rotate and increase/decrease the size using the top icons. When done, tap the Check mark on the top right.
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.
You can w rite something on the post and press "Share" to post it to your friend’s Timeline.