How do you ride the horse in Sarah Keeper of the Unicorn DS game?

In "Sarah: Keeper of the Unicorn," you ride the horse by approaching it and selecting the option to mount. Use the stylus to control the horse's movements as you navigate the terrain. You can steer left or right and adjust the speed to help Sarah complete her tasks and explore the game world. Make sure to pay attention to the obstacles and challenges that may arise during your ride.