To create and edit your 3D Avatar, you need to open the Facebook app. Go to the main menu, tap on your profile picture, and from the drop-down menu that appears, select \"Create Profile Picture with Avatar.\" Wait for the creation platform to load. Here you\'ll find everything related to your avatar: - Create a profile picture - Create a post - Share a pose - Explore stickers - Edit your avatar In the latter, you can customize your avatar however you like. You can choose your skin tone, eye color, hairstyle, facial features, eyes, eyebrows, glasses, piercings, and hats. While editing, you can check your features by tapping the mirror icon; this will open your phone\'s front camera. When your avatar is ready, tap \"OK.\" You can then interact with posts, try out the avatar emoji, and create poses with your contacts via chat. Every time you edit your avatar on Facebook, Messenger, Instagram, and the Meta apps, it will update automatically. Your Facebook and Instagram accounts are linked, so your avatar on Instagram will update automatically. To connect them, go to the main Instagram menu, then Settings, and finally Meta Account Center.