Help using Kinect, please

Just got the Xbox One, and I'm having trouble with the Kinect Sports demo. The sensor keeps telling me the path is obstructed. Do I need to move my coffee table and everything out of the way to play the game? Does anyone have any tips on making the Kinect work more efficiently?

Thanks.

That demo has gummed up on me a time or two. A reboot did the trick.

I had those problems too. I had a shinny wood floor, so i bought a throw rug. I also mounted my Kinect on top of my television. The higher, the better.The kinect needs to see your floor during the calibration set up too, Now it works flawlessly for me.