Gently hold the end of a spoon so that it can freely rotate.
Then bring the spoon slowly toward water exiting a faucet. As
soon as the water stream touches the spoon, you should feel
the soon getting pulled into the flow.
The shape of the spoon causes the flow to curve. As soon as the flow curves
(and the streamlines) the pressure will drop (Euler's n equation)
causing a pressure difference across the spoon dragging the
spoon into the flow.