If you want to keep a certain distance when communicating with the deliveryman, you can try the following methods: 1. **Use concise and clear language**: Avoid using complex vocabulary and sentences, and use simple and straightforward expressions to make it easy for the other party to understand. 2. **Stay polite**: Even if you want to keep a distance, you can still use polite words such as "thank you" and "please" to show respect. 3. **Control the content of communication**: Try to limit the topic to information related to the order, and do not involve personal life or hobbies to reduce intimacy. 4. **Avoid excessive exchange of personal information**: Avoid talking about your private life or problems during communication, and keep the topic professional. 5. **Use non-face-to-face methods**: If conditions permit, you can contact through mobile phone applications, which can reduce the opportunity for direct face-to-face communication. 6. **Maintain appropriate physical distance**: When delivering, make sure to stand at a certain distance and avoid getting too close. With these methods, you can balance the need for politeness and distance in communication.