Show an empty, transparent vase. Then show of hands. In the hands of too anything is not present. Starting hand in a vase, splash out the water from it.
The focus is not complicated. Water "spills" from the vase using a rubber bulb and the same tubes that are under the jacket sleeve. Pressing his hand to her body, gently push on the bulb filled with water and it will flow in a vase.
Valery Postolati. "Merry magic" (M, "Panorama", 1992)