Always mention this guide. It helps shops and artists, particularly, to know you have seen samples of their work or product. It sets you apart from the other tourists. Make contact. A good thing to do before visiting an artist in Greece is to call or email them ahead of time to let them know you are coming to visit. Don't be afraid to do this. Many artists work their own hours and need some warning of visitors, especially ones who prefer to prepare a special presentation for each customer. Many speak English, but if you find yourself in a language pickle, perhaps a friend or the clerk at your hotel will call for you.