Which ones are you talking about? I know if you buy Emoji Emoticons(SP?) you open the app and close it after 10-12 seconds. Then go to Settings, Keyboards and go to Japan and select Emoji as your keyboard. This is the one I know about hope it helps.
It's logical to assume that he's talking about emoji...unless you seriously thinking he's literally asking how to "turn on emoticons," which makes no sense. I think we've said "emoji" in this thread enough that he knows the proper terminology now. Just because he used the wrong word doesn't mean we shouldn't help him find what he meant to ask for.