The right to kick off is determined by guessing coins.
Coin guessing is organized by the referee, and the captains of the two teams choose the kick-off or venue. The first place should have the right to choose the kick-off or venue.
In the first half, the right side chooses the attack direction, and the wrong side can kick off first;
The right side chooses to kick off first and the right side chooses the attack direction in the first half.