Types of Cameras
In GoBrunch you have 2 types of Cameras:
Circle Cam
Presenter Cam

The presenter cam is the Cam button located at your bottom menu bar.
Click on it to turn it on. This option is available by standard for all organizers and moderators. Check here how to add a Moderator.
How to turn on your Attendees' Presenter Cams (The Big Cam)
There are 5 ways.
Clicking on the avatar
Join your room and take a seat.
Click on the person's avatar
Click on the cam icon

Searching Individual
Join your room and take a seat.
Click on Attendees located at the bottom menu

Click o Individual Search

Click on the Presenter Cam icon

Adding as Moderator
Join your room and take a seat.
Click on Attendees located at the bottom menu
Click on Search Individual
Click on the Moderator Helm icon

Starting a Traditional Meeting where All Presenter Cams are available for everyone as default
Click on Get Started on Traditional Meeting

Changing the Preset. This will allow for everyone to enable their Presenter Cams after they join.
Join your room and take a seat.
Click on This Room

Click on Room Settings

Check the option Everyone has Access to Presenter Cams

Click on Update