Summarize this article in one sentence.
It’s the green icon with a winking chat bubble typically located on the home screen. Scroll to the right to view your Bitmoji character in all sorts of scenes, then tap your selection. The Sharing screen will appear. The Bitmoji is now ready to paste. Most social apps like Messages, Facebook Messenger, and Twitter support adding Bitmoji to chats and messages. This is the place you would normally type text. Your Bitmoji will appear in the message, ready to send. Another way to quickly use Bitmoji in posts, chats, and messages is to type them with the Bitmoji keyboard.

Summary:
Open the Bitmoji app. Select a Bitmoji. Tap Copy. Open an app that supports Bitmoji. Tap and hold the text box. Tap Paste.