Match on action, also known as cutting on action, is an example of continuity editing in which whatever action is taking place on the screen is continued as a cut is made. In other words, whatever the character does in the first shot must be continued in the second shot after the cut and change in angle. It is called 'Match on Action' as the cut makes the movement seem uninterrupted and smooth, giving it a sense of continuity.
Video example for match on action:
Shot/Reverse Shot
This filming technique usually takes place during conversations. It is when characters are facing each other, one character is looking at a person, usually off-screen, and the person is shown to be looking back. Since the characters are shown facing opposite directions, the audience assumes that they are looking at each other.
