Scroll or pinch on the map to zoom, and drag to pan.
Click a state name to pick it up (click it again to put it down), then click a state on the map to place it there. Click a placed state, or its name in the list, to take it back. Small Northeastern states also have boxes at the right edge you can click. Press Submit when you are done.
Tap a name, then tap its state. Tap a placed state to remove it. Pinch to zoom.
Scroll or pinch on the map to zoom, and drag to pan.