The water in the stream has no charge on it. The water is uncharged.

The charged balloon attracts the uncharged water, so the stream bends toward the balloon.

The charged balloon beside the stream: the stream bends toward it. Does the balloon pull the water? Yes.

A thin stream of water bends toward a charged balloon.

Now consider a ping-pong ball on the desk. The ball is uncharged.

Elsie holds the charged balloon beside the ball, and the ball rolls toward the balloon.

The charged balloon attracts the uncharged ball, without touching it.

The charged balloon beside the ping-pong ball: the ball rolls toward it. Does the balloon pull the ball? Yes.