Invite your guests to join your stream by clicking the Add Guest button from your left navbar on your Melon Studio.

Please ask your guests to copy & paste the URL you sent into a new browser window. (Google Chrome preferred) If they click/tap the link via mobile or through any messenger service, they may not be able to join successfully.

You can also use the Permanent Link as long as you have the option enabled:

*Please note: Disabling the Permanent Link toggle may result in your guest(s) not joining your broadcast successfully.
If you choose not to use the Permanent Link, please ensure you do not refresh your browser after sending a guest an invitation. 
Please do not share your Add Guest link with your viewers unless intentional. (Guest/Speaker)

If for any reason you need to reload your studio/browser window, you will need to reinvite your guests.