3 ms·Okay, a guy from internet knows better than hundreds of authors :)by aristofun 6y agoOkay, a guy from internet knows better than hundreds of authors :)Graffur 6y agoDon't make me invoke Godwin's law :)aristofun 6y agoBut what exactly “no”? No, we there’s no mechanisms behind reciprocal smiles for instance? Or no, they don’t play role in our survival? Or no, we shouldn’t respect them?