Download and install the Twitch app from the Microsoft Store on your Xbox
Open the Twitch app and sign in to your Twitch account
On your Xbox, go to Settings
Select Account
Select Privacy & online safety
Select Xbox privacy
Select View details & customize
Select Game content
Allow broadcasting gameplay
Make sure your microphone is connected if you want to use voice
In the Twitch app, select Broadcast
Set your stream title and other stream settings
Start the game you want to stream
Return to the Twitch app and begin broadcasting
Use the Twitch app or a second device to monitor chat
End the broadcast from the Twitch app when finished