18% is added to parties of 6 or more. On the bottom of your bill (and you will get a bill regardless of whether you are using a dining plan or not) there will be a suggested tip amount of 18% or 20%. Simply write the amount that you wish to leave, your Magic Band will be scanned, the dining plan deducted and the gratuity amount charged to your room. If you want to leave cash, write CASH in the tip line. If you want to put it on a credit card, gift card or redemption card, put the card in the book. The server will run your dining plan and charge the amount to whatever you chose to use. You will then have to sign the receipt stating that you used the dining plan and then sign for the charge. The transaction isn't complete until you sign on the signature line.