The help page for the interview page interface (How to use globe)
Select desired country with the dark green background and click it.
The popup "Do you wish to move to the interview page of [Name of the country you selected]?" will be shown up so choose "Yes" or "No".
At default, the globe is automatically rotating, but you can Rotate/Zoom In and Out for yourself.
With device, Move your cursor while clicking or swipe(drag)
Place the thumb and a finger on the screen of your device and closer the distance of the thumb(Pinch out)
Place the thumb and a finger on the screen of your device and wider the distance of the thumb(Pinch in)