Allow your Google+ circles to Hangout with you
If you use Google+ you can enable specific circles to Hangout with you. When someone from an enabled circle sends you a message or invites you to a video call, you'll be able to Hangout right away without having to accept a Hangout request (Invite) first.
Choose which circles can start Hangouts with you:
- Click menu at the top of the Hangouts list.
- Select Customize new invites.
- Select a circle and choose the setting you prefer. You can adjust the settings for anyone not in your Google+ circles by scrolling to the bottom of the list and changing the setting next to "Everyone else."
- Click Save.