To redeem McDonald's instant win, simply check your game piece or app notification for the winning message. For physical game pieces, take them to a participating McDonald's location and present them at the counter. For digital wins, follow the in-app instructions to claim your prize. Always read the terms and conditions to ensure eligibility and validity. Don’t forget to keep your original winning game piece or confirmation. Additionally, enhance your McDonald’s experience by participating in the mcdvoice.com survey. Sharing your feedback can improve service quality and might even lead to more exclusive offers or rewards in the future.