When picking up a package with a courier, reducing the depth of communication can be achieved in the following ways: 1. **Prepare relevant information in advance**: When the courier arrives, you have prepared relevant information, such as signatures, ID cards, etc., which can reduce unnecessary communication. 2. **Use short greetings**: You can simply say "Hello" or "Thank you" without having a long conversation. 3. **Avoid asking unnecessary questions**: If you don't need to know the details of the courier, you can avoid asking the courier about the source of the package, the transportation process, etc. 4. **Use the automated services of the courier company**: Some courier companies provide automated services such as automatic signatures, automatic phone notifications, etc., which can reduce communication with the courier. 5. **Be polite but concise**: You can be polite and friendly, but at the same time keep the communication concise and avoid long conversations. In these ways, you can reduce the depth of communication with the courier when picking up a package while maintaining a polite and friendly attitude.