Subconscious Sniffing

Humans engage in subconscious processing of scents and social cues, often without realizing it. While dogs openly sniff each other, humans have evolved more subtle forms of interaction, such as handshaking, which remains a global phenomenon with unclear origins. Observations reveal that after handshaking, people often wipe their hands on their faces, hinting at deeper, instinctual behaviors tied to our senses.