In today's business world, professional success extends beyond competence and technical skills to include the ability to act with grace and elegance in various situations. This course is an essential step for anyone aiming to excel in their career. It begins by explaining the concept of professional etiquette and its importance in fostering a positive and productive work environment. We then delve into the etiquette of interacting in a mixed environment, discussing how to deal with colleagues from diverse cultural and geographical backgrounds in a manner that respects diversity and promotes collaboration, while highlighting common etiquette mistakes. We also cover effective meeting management etiquette, from proper preparation to respecting others' time and managing discussions to achieve desired goals. During brainstorming sessions, we focus on creating an environment that encourages creativity and innovation, with respect and appreciation for all ideas presented. Additionally, we discuss the etiquette of gift-giving in the workplace, ensuring these gestures reflect appreciation and respect without crossing professional boundaries. Finally, we comprehensively review how to interact with others in the workplace in a way that enhances professional relationships and leaves a positive, lasting impression. Through this course, you will learn all aspects of professional etiquette and acquire the tools and knowledge to build strong, sustainable professional relationships, enhancing your productivity and job satisfaction, and making the workplace more inspiring and collaborative.