Location: "Actions" menu
It is a paid effect that allows you to add more emotion to comment.
Of course, if you changed your mind you can deselect "emotions".
The "emotion" can be removed only with the comment after application.
You can enjoy all these pretty "emotions" below:
Note: This is a "paid" effect, which means that you’ll have to spend a certain amount of your points to add a remark to the comment.