All these strong objectives and obstacles add excitement in the movie and make the audience sympathize and root for Ben Braddock.
Moreover, presentational and representational acting is a significant portion of the acting techniques used in this movie. For example, at 00:16:36, when Mrs. Robinson gets naked and locks the door, Ben still looks at her body despite having refused to have sex with her. His eyes move from left to right, bottom to top, as if he were inspecting a piece of artwork. Hoffman's shaking upper body shows the audiences that he is nervous, yet from the sparks in his eyes, we can see he is overwhelmed and amazed by the naked body at the same time. Right after this moment, Mr. Robinson comes home. Ben opens the door lock, runs down the stairs five stairs at a time, sits down, and grabs a drink. Ben finishes this whole process in five seconds. Contrasted to the previous moment, Hoffman's movements are so big and dramatic that audiences can feel the intensity happening. At this moment, his representational acting indicates his panic, nervousness, and fear. Moreover, at 01:00:17, when Elaine figured out that Ben had an affair with her mother, she shows all her emotions through her eyes. Her eyes filled with tears and anger at the same time. Her presentational acting shows that she was upset, disappointed scared, and felt humiliated. In all, representational and presentational acting consists of a significant portion of acting tools. With the use of this technique, audiences can read and feel the character's feeling better. .
Aside from acting techniques, the blocking in this movie is laudable as well. At 00:19:35, Mr. Robinson and Ben's conversation was shot from the side and back. This actor position helps the audiences capture Ben's actions after Mr. Robinson said, "In many ways, I see you as my own son." He gets nervous and embarrassed, takes a deep breath and swallows his saliva.