It'll be hard not to find something you like while perusing the city market. Most of the items being sold look like they belong in a garage sale, but among all the trash, treasure is to be found.
I found a beautiful one-of-kind handmade wire and beaded necklace for about $3.00. Something like this in a shop where I live would have cost more than $20.00. The clothing being sold was in pretty good condition and certified vintage. Most of the other items peddled are souvenier items that one would buy to take home.
I wasn't intimidated by the language barrier. Just point at something and wave the money. If all else fails, find someone who knows English--not very hard. I had two German speakers with me and since Dutch is similar, they were able to help me out.