Effective communication takes time, is honest, and is open.
Good communicators listen, rephrase and avoid criticizing and acting superior.
Establish eye contact and clearly demonstrate by body language that their interest is focused on what is being said. Restate the parents concerns. Clarify what has been said and try to discern the speaker's meaning and feeling. Avoid closed responses or answering as a critic, judge, or moralist. Show respect for the other person.