In Korean culture, handshakes are common but the eldest person should extend their hand first. Being overly polite will make a good first impression. When shaking hands, use both hands and bow slightly deeper than the other person bows. Aggressive friendliness is discouraged. When leaving a group, bow individually and thank each person. For men, a dark suit and tie are recommended for professional settings and jewelry is unusual. For women, facial hair is unprofessional but jewelry is acceptable. When exchanging gifts or documents, use two hands and bow to show thanks and humility. Never write on a business card you receive. Say "thank you" as "kamsahamnida" and "you're welcome" as "