• Polish people use a slightly different way to count using the fingers. Make a fist with your right hand with the palm facing your body, and start with your thumb as one. Two-open your pointing finger, three-middle finger and so on. So if you want to buy two breads, do not make the conventional peace sign; they wont understand!
• People in Krakow speaks very little English, you might have a lot of trouble in finding train station, post office, or even buying food in McDonald. So it's very useful to learn few Polish vocabs about places.
• Remembers 'W' in poland sounds like 'V'. So Krakow actually sounds like k-rah-coa-f rather than k-rah-coa-oo. Learning the pronounciation also helps alot when communicating to local people when asking direction.
• Places of interests are Rynek Krakowski, Wawel Castle, St Mary's Basilica and few attraction outside the city like Wieliczka Saltmine and Auschwitz-Birkenau Concentration Camps. Guided tour to Auschwitz and Saltmine can be book at the Sukiennice building at Rynek Krakowski.
• If you would like kosher cuisine, you can find them almost everywhere around the city, especially in the Jewish Old Town, Kazimierz. There's 7 synagogues in this ghetto but you might have troubles finding some of them.
• For muslims, you can find NO halal food at all over here. Be prepares to eat vegetables or fish or bring your own food if your coming here. For 4 days I was there, I only managed to finds two muslims. There's few kebab restaurants but none of them serve halal food. When I ask about halal food, one of the workers of Turkish background said to me, "No, never in this country. Maybe in Warsaw but not here."