Intersting quesiton. I did a search about for source texts/articles and couldn't find anything. ( http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999

Intersting quesiton. I did a search about for source texts/articles and couldn't find anything. ( http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.01.0254:text=SD:book=1:chapter=6&highlight=shrug http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:19... ) The only thing I saw that might be about it is in Quintillian, which doesn't interpret it exactly as we would - seeing it more as a servile gesture: "humerorum raro decens adleuatio atque contractio est; breviatur enim cervix et gestum quendam humilem atque servilem et quasi fraudulentum facit, cum se in habitum adulationis, admirationis, metus tingunt." ( http://www.perseus.tufts.edu/hopper/text?doc=urn:cts:latinLit:phi1002.phi00111.perseus-lat1:3.83 http://www.perseus.tufts.edu/hopper/text?doc=urn:cts:latinLi... ) "It is, as a rule, unbecoming to raise or contract the shoulders. For it shortens the neck and produces a mean and servile gesture, which is even suggestive of dishonesty when men assume an attitude of flattery, admiration or fear." ( https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Quintilian/Institutio_Oratoria/11C*.html#3 https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Quintilia... ) It's not completely clear to me from a cursory glance if he isn't talking about posture rather than the gesture though shrugs