How do I know if I am the active player in Dance Central (1)? How do I become the active player?

In Dance Central, the active player is marked as white in the helper frame.

Make sure you're visible from head to toe in the helper frame so the Kinect Sensor can see all your sweet moves!

Inactive players are marked as gray in the helper frame. To switch between players, simply step in to the center of the Kinect Sensor's field of view. You'll know you're the active player when your silhouette is highlighted and switches from gray to white.