Business etiquette provides a code of conduct for social interactions in the workplace. It promotes professionalism through proper etiquette for emails, office behavior, dining, telephone calls, meetings, and business cards. Email etiquette is especially important, as emails should be brief, properly structured, use appropriate language and tone, and respond to messages in a timely manner. Following rules of etiquette helps create a professional image and prevents issues like miscommunication. Office etiquette also maintains professionalism through policies on attire, gossip, personal matters, hygiene, and respecting hierarchy. Overall, business etiquette establishes social expectations that foster effective workplace interactions.