1. Launch the "American Truck Car Driving" game on your mobile device.

2. Choose your truck and cargo mission from the available options in the game menu.

3. Once the mission begins, your truck will be positioned at the cargo loading area in the city.

4. Use the on-screen arrow keys to control the direction and movement of your truck.

5. Tap the acceleration arrow to move forward and the reverse arrow to move backward.

6. Use the left and right arrows to steer the truck in the desired direction.

7. Follow the arrows displayed on the road to navigate through the city streets.

8. Drive carefully and obey traffic rules to avoid crashing into obstacles or other vehicles.

9. When you reach the destination point, position your truck accurately in the marked area to unload the cargo.

10. Once the cargo is delivered successfully, you will complete the mission and can select a new one.

11. Use the mouse or touchscreen to interact with buttons, menus, and to select missions.

12. Progress through more challenging deliveries as you complete levels and improve your driving skills.