Before doing this, better to do a survey if people knows about bitcoin, if they are interested if someone would sell it to them, stuffs like that, because selling it to a Market Stall might just get you in to nowhere, or ended up disappointed because no one bought even a 0.00001 bitcoin to you, because they prefer fiat more than bitcoin, since it is new to them. Also, selling it to the Market Stall is a lot of money, I mean you need to pay a fee every month on your place where your stall at in the mall because that is how it works.

But, let's say that you have already done a survey and it went successful, then take the opportunity to do it, because there is no victory without risking anything at all, but don't put all the eggs on one basket.