乌鸦喝水

Once upon a time there was a crow. The crow was dying of thirst. So it was searching everywhere for water. Finally it found a bottle with some water in it! There was just one problem: the bottles neck was long and narrow. The crow could not reach the water. But the crow was clever and found a solution!
What was it?
乌鸦喝水 is a Chinese proverb. It says "the crow drinks water": it means, a clever person finds a way. What did the crow do that was so clever?
Note: crows are in fact intelligent and capable of mimicing human speech mimicing human speech human speech human speech.