- Herbodicewasmadeofcrinklymaterial.Someofthebestknownresearchonsmilingisabouthowpeoplejudgeanauthenticsmile-theso-called'Duchennesmile'orthe'crinkly-eyedsmile'.Howstillthetreeswere,withtheircrinkly,innumerabletwigsagainstthesky,andtheirgrey,obstin...
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