Public Party feature allows you to invite your viewers to join a party. To invite your viewers please, follow these steps:
Once you started your broadcast, tap invite button in the bottom of the screen.
After that chose Public Party option.
The invitation will be sent to your viewers. After that you will be able to allow a viewer to join or refuse. To allow viewer to join, use red check button, which is located in the window. A viewer can join either with video or audio only.
You can remove a viewer from Public Party anytime.