Business Hangouts runs on YouTube Live. To take your event live make sure you have setup your YouTube account correctly. Follow the steps below to setup your YouTube account.
You can watch the video above or simply follow the instructions below
1
Enter the title of your event (so you can find the video on Youtube later)
2
Select Privacy preference
Select Privacy preference
3
Click Go live button
Once you are inside Google Hangouts, click on green Business Hangouts icon on the left side