Google is rolling out a new features for Gmail. In this new features Google team integrate your Gmail friends with their Google+ account means when you hover your mouse over one of your friends in Gmail, then it will show you thumbnails of the photos and videos shared by your friends.
You can also shared these Photos and videos just from your Inbox. According to Google team,
Gmail and Google+ are both great places to share images and videos with your friends, and we’re always looking for ways to make this easier. We’ve been showing recent Google+ posts in the people widget for some time, and a few weeks ago we added the ability for you to share YouTube videos from your email to your Google+ stream.
Today, we’re expanding recent Google+ posts in the people widget to include thumbnails of the photos and videos shared in the post. We’re also making it easier to share inline images in emails — just hover your mouse over the image in your email and you will see an option to share it on Google+. We’re still rolling out the update, so if you don’t see it yet, sit tight.