1. Be polite and patient: be polite to the doormen and respect their work. Don't worry if you have any questions, explain patiently.

2. Clear information: Get accurate information about the people you want to meet every day in advance, such as their class schedule or work schedule, so as to provide more accurate information when communicating with the doorman.

3. Understand the school regulations: be familiar with and abide by the relevant regulations of the school, such as the opening hours of the school gate and the regulations for visiting off-campus personnel, so as to avoid unnecessary troubles caused by violations.

4. Respect privacy: respect the privacy of others, and don't disturb or invade others frequently.

5. Appropriate time and place: Choose the appropriate time and place to meet, and avoid the rush hour or inappropriate places.

The above are just some basic suggestions, which can be flexibly adjusted according to the specific situation.