Communication is essential for managers to make decisions and share information. Effective communication requires transferring information from a sender to a receiver and getting feedback. There are various barriers to communication like noise, language differences, filtering of information, and stress. Managers can improve communication by actively listening, providing feedback, and using various nonverbal cues and vocal tones. While the grapevine is an informal communication network, most rumors spread through it contain some accurate information, though messages may lack full context or details.