Group discussions are important for solving problems, learning concepts, and improving skills in the workplace. Preparation is key to participating effectively in group discussions - members should understand the topic, communicate ideas clearly, ask questions to further their understanding, and avoid conflicts. During discussions, the goal is usually to summarize information, determine understanding, reexamine past concepts, and brainstorm real-world applications. Proper speaking skills like clarity, conciseness, and tone are important. Leaders should choose engaging topics, give members roles, and encourage participation and respect among all members to ensure successful group discussions.