Google+ rolled out yet another new feature  yesterday: real-time hangouts with YouTube. After clicking the “share” button under any YouTube video, users will see a new link to “Watch with your friends: Start a Google+ Hangout.” They can then choose a few friends to invite to watch the video.
Although Google didn’t officially announce the new feature, company product manager Brian Glick wrote a short post  about it on his own Google+ page, writing, “You can now start a Google+ Hangout with a YouTube video, directly from YouTube. Watch with your friends. :)”
YouTube Live product manager Brandon Badger told GigaOm  a few weeks ago that the company was working on the feature. At the time, Google+ users were already able to start YouTube hangouts by manually going through several steps, but the new feature makes the process a lot easier.