Screen sharing on Xfinity is a feature that allows you to share your screen with another Xfinity user. To share your screen, you will need to be logged in to your Xfinity account and have the other user's Xfinity username and password. Once you have the other user's Xfinity credentials, you can follow the steps below:
1. Open the Xfinity My Account app and tap the Share Screen icon.
2. Enter the Xfinity username and password of the user you want to share your screen with.
3. Tap the Share Screen button.
4. The other user will now be able to see your screen.