Microsoft spokesperson Larry 'Major Nelson' Hryb has put out a video showing off the Xbox One's new Friends App, and SPOnG has it below.
It shows off new features such as the ability to 'follow' other gamers without having them on your friends list proper, as well as a favourites list that enables you to sort the wheat from the chaff. It all runs through a feed, which shows you what friends and the people you follow are up to on their Xbox and can be snapped to one side.
We could keep describing it all to you, but you're probably better off just watching the video. Have at it!