Snuggly, looks like you found an answer so I'll hijack thread in attempt to help our elders.
Hotflash - If you are using a computer (not sure how it shows up on phone apps) and you mean the emojis in this text box
then the simpliest way is to use the button "Full Editor & Preview" when replying or starting new thread. Emojis can be clicked on from the right side
If its emoji's for something else then ignore my comments.