Business etiquette involves following social norms and conventions to make a good impression in professional settings. It includes proper introductions, appearance, communication techniques, and etiquette for meetings and dining. Introductions should mention higher authorities first and include eye contact and a firm handshake. Dress and grooming should be simple but classy. Emails should be concise and use proper grammar, while phone calls involve listening carefully and identifying yourself. Meeting etiquette involves thanking attendees, avoiding distractions, and setting an agenda. Observance of business etiquette helps one be confident, exhibit professionalism, and develop successful relationships and opportunities.