Final answer:
Universal non-verbal communications include smiling for joy and crying for sadness, although interpretations can vary across cultures.
Step-by-step explanation:
The two not culturally bound types of non-verbal communication that are nearly universal are expressions of joy, typically demonstrated through smiles, and expressions of sadness, commonly shown through crying. While many nonverbal cues are culturally specific and can vary greatly in meaning across different cultures, these two emotional expressions tend to be recognized and understood universally. Despite the universality, it's important to note that different cultures may still have varying interpretations of the intensity or social appropriateness of these expressions in certain contexts.