There are different ways of posting avatar. Here I am going to explain two methods for sending them.
How to Post Facebook Avatar;
1- Open your Facebook application.
2- Click on the Settings, at the top right corner of the screen.
3- Click on “See More”.
4- Click on Avatar.
5- Click on Stickers buttom.
6- Choose your desired sticker.
7- Here you have two options,
Send your sticker to messenger
Send your sticker to other applications
Here I am going to send this avatar to Whatsup application.
So I will click on More option.
8- Choose your desired application.
9- Choose the person who will receive your sticker.
10- Send your sticker.
How to Post Facebook Avatar in comment;
1- Click on the comment below the post where you want to send your sticker.
2- click on Avatar icon.
3- Choose your desired avatar.
4- Post your avatar for your friend.