How do I know that under the cap of the bottle Bashny.Net

Take a clear glass of water (0, 5 cm to the top or add), in the other hand a beer bottle. The bottle is turned and lowered into the water stopper 2-3 cm. See through the neck of the bottle upside down (which is in the water) under the plug and tilt the neck a little to himself, rotate until just make out the letter or figure score. All this must be done in good light. This technique is most often used by people who work in warehouses or commercial kiosks. Some already know this method agree with the sellers, and for a price are bottle crates straight home, "inappropriate" - simply exchange.
NOW YOU understand why SHARE SO difficult to win ???