Final answer:
Children should exercise online privacy, use respectful language, be clear and concise, and communicate doubts constructively while understanding the difference between fantasy and reality when openly communicating.
Step-by-step explanation:
When children communicate openly and truthfully, they must practice online privacy and be aware of the impact of their communication. They should avoid sharing personal details and be mindful of who might see or share their messages. Using respectful language, avoiding text language, and being clear, concise, and to the point are essential aspects of effective communication. Children should also know how to express doubts or concerns in a conversation, using phrases like 'it seems that' or 'it appears to me that,' to invite constructive dialogue without asserting absolute authority. It's also critical for them to have a more realistic view of life, distinguishing between fantasy and reality, especially in the context of media events or online information.