Australians drive on the left side of two-way roads, and that means the steering wheels on vehicles are on the right-hand side, so the driver is close to the center of the road. Countries that drive on the right such as the United States and Canada may find this strange but Australia is not alone. In fact, about a quarter of the world's nations drive on left side of the road and other countries that do include New Zealand, Ireland, UK and mostly old British colonies.
If you wish to drive in Australia in a rental car, you may want to ask your companion to remind you of this every time you set off and when you are turning at an intersection to avoid getting caught. In addition to that, always use pedestrian crossings and be sure to look carefully to the right side, then the left side and then right again when you walk across the street.
We also suggest you do some research before you begin your journey in your rental car, and if you feel lost and confused, we highly recommend to always ask at the car rental desk.