Etiquette columnist, award-winning journalist and editor of four lifestyle magazines, Melanie Warner Spencer helps you or your team polish and perfect the business etiquette knowledge and skills crucial to success in today’s world of business. She will join us Friday, December 2nd to share her five etiquette habits always employed by successful people. Here are her tips for being the co-worker that everyone likes sitting next to... Five Tips for Being a Pleasant Co-Worker 1.