Does Greece Accept U.S. Dollars? Establishments in Greece do not accept U.S. dollars as a form of payment. You will need Greek currency for cash transactions in Greece. In places that do accept physical U.S. dollars, such as hotels, using them may result in very unfavorable exchange rates or additional fees.
How to be polite in Greece?
Greeks are very demonstrative and affectionate. Nodding your head "yes" is not polite; say "yes" instead. "Yes" is signified by a slight downward nod of the head; “no" is a slight upward nod of the head. The “O.K.” sign is a rude gesture; "thumbs up" means O.K.