When you respond to a post you must select "Go Advanced" at the bottom of the page next to or instead of "Post Quick Reply". Then you will see a new window open and you will see your selection of different emoticons on the right side of the page... you can also select more (located right under those emoticons) and see a bigger selection of them open up. Then you just click on the one you want and it will populate into the body of the post you are making. Compose your post or response as usual and then you can click once or multiple times to select more than one or several different ones where ever your cursor is flashing. Then "Post Reply" as always.
"Just Like Iron Sharpens Iron... So it is that One Man Sharpens Another Man." Proverbs 27:17