Method 5 of 5: Using the McDonald\\'s App to Pick Up Food Download ArticleDownload the McDonald\\'s app to your smartphone. You can find it in both the App Store and the Google Play Store.Navigate through the menu and select what you\\'d like to order. Check in to complete your order when you arrive at the restaurant. Choose how to get your food. Once you get your 4-digit code, you\\'ll be given 3 choices to select from.