The quote from Jonathan Safran Foer's "Extremely Loud and Incredibly Close" highlights the unique qualities that distinguish humans from other animals. It suggests that attributes like blushing, laughing, and having religion reflect the complex nature of humanity. These characteristics illustrate our emotional depth and social behaviors that set us apart in the animal kingdom.

Additionally, the mention of kissing with lips emphasizes intimate human connections. The act of kissing is presented as a profound expression of our humanity, symbolizing love and connection. By engaging in such gestures, we demonstrate our emotional capacity and unique relationships, which further define our existence as distinctively human.