Jared calls it "skiing"

Before Sammy could walk he taught himself how to ski. As you can see from the video, he'll just push something around on the floor. He uses anything he can get his hands on and that will slide around easily. Then he gets really frustrated when he gets caught up on a bump. Sometimes he'll even push something with both hands--whatever is available. And he entertains us and himself for a long time with it. It is so fun to watch!