How to change COMMENT AVATAR in YIK YAK app?

okay so how to change commenting avatar in yik yak so uh this app is anonymous so you don't have your profile you don't have your profile picture but when you are commenting you just have like a comment emoji so to change that just tap on the settings in bottom right tap on more options and then here you can tap to reset comment icon your comment icon is a random emoji and color that appear next to comments you make and then you can just reset your comment icon at any time but you can't undo this and now my comment icon is cake now it's like a moon so you can just change it until you find the commenting icon or avatar in yik yak which you really like