IN: What happens next?

How to clean kitchen cabinet knobs
Remove the knobs from the cabinets with a screwdriver.
Many cleaning detergents and hard scrubbing can damage the wood of the cabinets. The backs of the knobs can also be an area where grime builds up; removing the knobs allows you to clean all of these areas.

OUT: Hold the knob tightly in one hand while turning the screwdriver counterclockwise in the screw on the back of the door. Remove the screws from the backs of the doors and set them aside for later.

IN: What happens next?

A man is standing in front of a white screen. He is talking about the saxophone in his hands and showing the proper hand positions. he

OUT: demonstrates how to play the instrument.

IN: What happens next?

How to close a dialog box
Realize that dialog boxes are displayed when there could be a liability issue that could ensue.
The program creator wants to make sure that the user realizes the effects of what performing the action might take, and that you know the process to undo the change (if any are accidentally completed).
Respond to the dialog box.

OUT:
Click the ok or cancel/close buttons from the dialog box. Traditionally, closing them could take a click of one of the boxes.