Match on action is an editing technique, it is also known as “cutting on action”. It is used to cut from one shot to another view that matches the first shot’s action.
Examples: a man opening the door and a close up of his hand on the door handle, a woman picking up a gun and a close up of her finger on the trigger etc etc.
Here is a simplified version of the match on action rule:
Shot reverse shot is a filming technique which applies the 180′ rule to it. Shot reverse shot is a filming technique in which one character is shown looking at the other character and the shot cuts to the other character looking back at the first character. This shot is commonly used in scenes of dialogue to show the conversation between the two characters and to show the reactions of the characters.
Here are some filmed examples of shot reverse shot: