What are two methods used by passive communicators?

Based on my personal experience:

1} passive communicators rarely initiate communication where there percieve there may be conflict.

This is even more so when they have strong emotions inside. ( happiness, anger, sadness, fear ). They would rather wait until they feel they have more control. In this way they do not make a fool of themselves or expose themselves to vulnerability.

2) Answering a question with a question is a common technique.