He often uses the analogy of a bomb. He says that if a bomb goes off out of nowhere, the audience is only surprised for ten seconds. he says you have to show the bomb to create suspense. He says we have to show the bomb under a table and show the people talking. Hitchcock says this gives the audience suspense because they are so focused on the bomb going off. You have to show the audience what is going to happen to the characters. This is how you can create suspense. He says it's important to keep things simple for the public. He says they should know who is and what. You can use distinctive clothing to distinguish each character. He also says it's important to let people know where everything is. For example, you need to let the public know where documents are hidden. Keeping things clear makes the audience more engaged and keeps them focused on the topic.