How can I improve my technique for executing a smooth and fluid piano run?

To improve your technique for executing a smooth and fluid piano run, focus on practicing scales and arpeggiOS regularly to build finger strength and dexterity. Pay attention to your hand positioning and finger movements, ensuring they are relaxed and fluid. Practice slowly at first, gradually increasing speed as you become more comfortable. Additionally, listen to recordings of skilled pianists to understand the desired sound and style of a smooth piano run.