Interpreting is another form of summarizing what you have just read or listened to with more emphasis on the thoughts, emotions, believes, and intentions behind the writers or speakers. What are these people thinking as they are saying this? What are they feeling? What do they believe? So now, not only do you understand what they are really saying, but also why they are saying it.
When it comes down to a book, you have to focus on the way something is written, the types of words used, or maybe even an image to complement. However, when you are listening/watching, you got to focus on the body language that is being shown on screen. The facial expression has to be clear. Sometimes you have no image and then you only listen to the audio. In these times you have to listen to the way words are being spoken. The volume in their tone. Are they angry? Are they sad? A lot can be interpreted by the tone of someone’s voice.