You don't need to tell the employee that you want to use bitcoin when paying with bitcoin at a Square terminal

You don't need to tell the employee that you want to pay with bitcoin when you want to spend bitcoin at a store that uses Square and has the bitcoin payment option enabled. You do not even need to mention bitcoin to the employee. You just click the toggle button on the top left and it'll switch the payment method from fiat currency to bitcoin and it will show a lightning invoice QR code for you to scan.