Reverse Shot

where one character is shown looking at another character (often off-screen), and then the other character is shown looking back at the first character. Since the characters are shown facing in opposite directions, the viewer assumes that they are looking at each other

In this scene i feel the shot is used to create a sense of tension between the two characters in shot it also gives a sense of perspective to the audience of the situation both faces it also shows the facial expression to each person one is smug and grinning while the other two seem  much more serious