This keyboard its outdated already. You should try Xperia Z1S with emoji support:
http://forum.xda-developers.com/showthread.php?t=2588353
[MOD][APP]Xperia Z keyboard for Galaxy S4 9500/9505
- Thread starter minchu99
- Start date
http://forum.xda-developers.com/showthread.php?t=2588353
Our Apps
Get our official app!
The best way to access XDA on your phone
Nav Gestures
Add swipe gestures to any Android
One Handed Mode
Eases uses one hand with your phone