Although Krakow is not as obscure a tourist destination these days as it was 15 years ago, it is still a great place to visit and the Cloth Market Square is a central place to hang out in the old town, close to the old Jagellonian University buildings and many interesting sights. It is also filled with outdoor cafes, perfect for watching the world go by.
Especially on a warm summer day, sit in a cafe, any cafe and just relax. Have some coffee and a pastry. Watch the world go by. There are the natives, the tourists, the vendors. You can see entertainers, Roma, fiacres or loitering fiacre drivers hoping for a fare. Students hang out. People go in and out of the Cloth Market, hoping for bargains at the shops inside or that perfect piece of amber. And every hour, from St. Mary's, you hear the trumpeter, his warning notes cut short, just as they were by the Mongol arrow all those centuries ago.
So whether you are there in the afternoon for lunch or a snack or the evening for coffee or an after-dinner drink, sitting in a cafe on the Cloth Market Square is a great place to watch the world, and its people, go by.