The secret to self-confidence is to know and understand the rules of social engagement before you're in the middle of an uncomfortable situation.Do you know how to:Pick the right fork? Shine at a networking event? Write a Thank you Note? Shake hands? RSVP to an invitation? Say no to a request for a favor?Use social media with clarity?Behave at a sporting event?Say the perfect thing at a funeral?Smoke a cigar in public? Etiquette isn't just something you need on formal occasions. It's a blueprint for how to behave every day, in every situation, to make interactions between people smooth and pleasant, with no ruffled feathers, misunderstandings or hurt feelings. It helps you smoothly transition from college to corporate life, and from professional obligations to personal ones. Etiquette doesn't exist to add a layer of extra rules to life―it's there to guide us to treat each other with kindness and consideration in our personal and professional lives.