Some apps and devices allow you to stream to Twitch. If they require a stream key, you can find it in your account's stream ...

This is my simple way to start streaming on Twitch using OBS, even if you're brand new. I walk through how I set up my Twitch account, choose what I want to stream, and connect everything using free ...

You can "Whisper" on Twitch to privately chat with someone using a chat command or by going to their profile page, depending on your device.