Just thought I would let you know, Kii Keyboard is awesome to use for emoji. Its like SwiftKey but IMO is way better seeing as you can really customize it. Currently in beta but you can grab it off the store. You add on the handscent emojis and you get a full on emoji keyboard just like you...
If you didn't make the jump yet, I suggest you grab GlowFly now, its an awesome app and on sale for $.99 which is cool. This thread brought it to my attention and glad I got it. Can reply from the lock screen without it unlocking my phone finally!
Try Multiling Keyboard on the app market, along with emoji codec. It will give you the ability to send emoji since they work in conjunction with each other. give it a go! You can even set the keyboard up where you can quickly switch to the emoji keyboard with a gesture. I used to use that until...