He tried to open the door using a crowbar.

He suddenly interrupted our conversation.

He pointed out the location on the map using a pointer.

He laughed at the children who were waving sticks.

He waved a stick to drive the dog away.

The control rod adjusts the reaction of the nuclear reactor.

There are a lot of wrigglers in this pond.

There are many wrigglers in this puddle.

If you pull this horizontal line, the door will open.