Translation of speculative in German

The people in the market knew how to bargain and one would hardly have a change to lower the price drastically. We bought some Espresso cups carved and painted with some local paintings.
There were too many of these children and they were determined to sell us a can of Coca Cola. All means were legitimate, even shaking our boat, so that we would be scared of falling into the water.
After a while a truck drove by. The driver offered us a ride on the back of the truck. We jumped in. A little later we were back in the hotel, exhausted and hungry. It was time for another great meal.