Cultural differences in friendship norms may include variations in communication styles, expressions of affection, boundaries, and expectations regarding loyalty and reciprocity. In some cultures, friendships are characterized by direct and open communication, while in others, communication may be more reserved or indirect. Expressions of affection, such as hugging or kissing, may vary in frequency and appropriateness across cultures. Boundaries around personal space, privacy, and sharing personal information may also differ. Additionally, expectations regarding loyalty, support, and reciprocity in friendships may vary, influencing how friends interact and maintain relationships.