If you go to the end of the market near the doors that lead to the trams by the Limmat, on the middle aisle you'll see a big navy blue tent adorned with a Union Jack and another, less aesthetically pleasing, flag with a flower on it or something. Look for a handsome gentleman with a big smile, and a lot of cheese.

There are usually a bunch of Anglo types hanging around, too, so listen out for people talking rubbish in English.

Good luck!