Select the Conversations tool from the Tool Menu of your site.
Click on a topic in the conversations area of the page.
Verify that the emoji displays properly.
Have you changed your mind about your reaction to the post and wish to remove the emoji? In an original post, click ADD A REACTION and then select the emoji you previously selected. Or, in an answer, click the smiley face icon (Add a reaction to this topic) and then select the emoji the you previously selected.
The emoji is deleted.
Note: