Here is how you can create your avatar from the Facebook app:
1- Tap the three horizontal lines in the bottom-right corner of the screen.
2- Scroll down and tap “See More.”
3- You will see a bunch of options to choose from. From there Tap “Avatars.”
4- You will now be greeted with a welcome screen saying.”A New Way to be You on Facebook. Tap “Next” Button from below that message.
5- Tap “Get Started.”
6- Tap one of the skin tone options (you can scroll to see them all).
7- And then tap “Next” at the bottom of the screen.
8- From there, you can customize your Avatar in a variety of ways by choosing their hairstyle, hair color, hair length, face shape, eye shape and color, makeup, eyebrow style and color, nose shape, mouth shape and color, facial hair, body shape, outfit and more.
9- When you’re done customizing your Avatar, tap the checkmark icon in the top-right corner of the screen.