I'm in a business hotel in Cordoba, and the waiter mentioned that below the check, is a form I can complete to leave him a tip. Is this normal? I've never really tipped in Argentina before other than on one special occasion because the waiter went out of his way for me. I always assumed you don't ordinarily tip, so I was surprised the hotel had a form to fill out, and on top of that, the waiter mentioned it.