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The scene involves Sheldon knocking on some door three times. He then proceeds to have a conversation with someone on the other side of the door. There is darkness to indicate it is night time in addition to him wearing pajamas. Soon, he walks away showing the other person is not interested in conversing at such a time. Next, he proceeds to Penny’s bedroom where he knocks on her bedroom wall twice besides muttering some words. Penny wakes up alarmed, which frightens both of them. She then proceeds to switch on her bedroom light so they can have a talk.

Upon playing the same scene with sound, Sheldon is at first outside Leonard’s door. His knock and repetition of Leonard’s name wakes the latter from his sleep and waits to hear what makes Sheldon wake him. However, Sheldon did not walk away from being unwelcomed, but he chooses to do so since he is unwilling to share something. In Penny’s bedroom, Penny wakes up screaming leading to Sheldon also to scream. He then ensues to explain what he is doing in her bedroom.

This scene is from the Big Bang Theory. It was easy to understand that the extract takes place at night owing to the darkness and dressing of the characters (Isbister & Nass, 2000). Sheldon’s knocking wakes the other characters to talk with them. It was challenging to identify whose door Sheldon was knocking at first and the reason he walked away. It was also difficult to know how Sheldon got to Penny’s bedroom, but he claims that she did not hear him knocking her front door. It is possible to understand someone’s feelings through nonverbal communication (Isbister & Nass, 2000). Sheldon seems in thought before walking away. Also, Penny and Sheldon were screaming when she woke up startled.

In conclusion, sound reveals more information about the characters in the scene from the Big Bang Theory. The scene shows the importance of both verbal and nonverbal cues in conversation and understanding its context. The different elements of communication can be identified thereby augmenting one’s meaning of the message besides making it stronger (Isbister & Nass, 2000).


Isbister, K., & Nass, C. (2000). Consistency of personality in interactive characters: verbal cues, non-verbal cues, and user characteristics.International journal of human-computer studies53(2), 251-267.