No!...if you intend going shopping in a Chinese market place...being quiet and demure is not the way to do it. Let everyone know what you are looking at, or for, and the sellers will come out of the woodwork, begging for your custom. The biggest asset will be your smile...they love doing business and the harder you bargain, the more they will respect you!, but the smile is very important...losing your cool, or losing your smile will lose you the bargain.
I spent a number of years (more than 10) shopping in places like this, mostly in their own countries and it took a while to understand the system, but I learned it with practice. For example...a gold plated goose egg (which I really liked), had a price tag of $300...I offered $50...he came back with $275 and so we went on until, after 15 - 20 minutes, and much muttering on his part, I walked away with the egg and he put $105 in his pocket...he was happy and so was I, but we both knew that I could have got it for $85 and he would have still made a small profit, he respected me for driving the bargain and I respected him for being a very pleasant trader.
Just to make a point, bargains CAN be found in such places...quite a few years later, a casual visitor to my home in the UK spotted the egg on display in my sitting room and made an offer to buy it...at first I declined his offer, but things got a bit silly and I eventually gave in and let him have it for many times the price I paid originally...closer to 105,000 pounds than the 105 dollars which I paid in the first place. Things have changed these days, copies of original works (and I mean the really valuable originals) have become much better, so you need to be careful, but everyday bits and bobs found in markets such as this one in Bucherest can usually be examined and verified fairly quickly....the seller(the decent ones) will normally be quick to tell you that what you are looking at a copy.
Go up there, be prudent, find lots of bargains....and have lots of fun.