If you have multiple webcams hooked up, try the other webcam (i.e. laptops have a camera built-in and there's an external webcam attached). Also, if you're using the camera for streaming or something else, you'll need to use an additional webcam, because streaming takes up that webcam slot.
If you still can't get the webcams working, you can use the Z and X keys on your keyboard in place of moving your left and right eyebrows.
Viewing post in Heisenberg's Uncertain Pinball comments
I use a hdmi capture card for my webcam. That's why it's not picking up. Streamed my first impressions here, really liked the music and art style
https://www.twitch.tv/videos/872333149?t=00h23m18s