In my square account it required me to opt in and re kyc the business with my ein number. Because the square account is now accepting ₿ and able to convert payments to ₿ square is custody of that corn so they mostblikely?legally need me to provide info. Many square operators to the spin the terminal thing like in the video. Now the guy obviously new he was making a bitcoin payment and selected that payment type. There ia just a screen with all the payment types: cash, gift card, debit card, "other" for checks ( or how i accept non kyc bitcoin with zeus integrated into my square merchant api) a cash app option and bitcoin. If they spin, nd are opted in, you could just select ₿ as payment type. Now mny square terminals have loyalty accounts linked with phone number or email so you may or my not wnt to link your ₿ payment with your loyalty. We don't spin the terminal normally and aways take peoples cards because I think self checkout is rude especiallybif you haven't used square before. My staff will be saying "are you saving 21% off today by paying with Bitcoin?" To get the people riled up!