Click on the comment section. Tap on the face icon. Then on the bottom of the screen, you will see a coloured face icon, after clicking which you will be able to see all the avatar stickers. You can use them now in the comments.
Click on the comment section. Tap on the face icon. Then on the bottom of the screen, you will see a coloured face icon, after clicking which you will be able to see all the avatar stickers. You can use them now in the comments.