When a guest needs something, he will greet you, then click on the customer with the left mouse button, and then click on the empty position to let them sit down. When a guest needs something on the seat, she will stick out her head and count what she needs. You can click on the bottom item in the game, and then click on the guest's location to send it to him. Be sure to hurry. If anything is missing, the rightmost pink will be added. If you take it wrong, order it again.

This game is always stuck, and I'm so depressed.