They’d grimace, laugh, ask me how to say it, then try again. But then they sort of gave up. Over the next few attempts, they’d settle into something that was a kind of approximation, and that would be that. What made me not mind these people was that they put the ...
There is also the nervous smile, which is actually believed to be the forerunner of all smiles; smiles having evolved from the “fear grimace” of other primates. What we don’t have is the kind of tooth display made by dogs as part of an “offensive pucker,” when the commissures (...