Click on 'reply to this topic', or the 'quote' box you see in the different replies in a thread. Once you do, a header appears at the top that lets you bolden type, italicize type, or underline type. Just to the right of that is a smiley emoticon. Click on that, scroll all the way down past the flags, and you'll see a small selection of what are titled 'emoticons'. Some are animated.