Natyashastra
पेशलकुत्सासूयादोषवचने च वामहस्तेन । किञ्चिद् विवर्तितकराग्रः प्रयुज्यते पार्श्वसन्दंशः ॥ ११५॥
For indicating softness, abuse, envy, and fault-finding, the left Sandaṁśa hand should be slightly turned at the tip and held on one side.
english translation
pezalakutsAsUyAdoSavacane ca vAmahastena । kiJcid vivartitakarAgraH prayujyate pArzvasandaMzaH ॥ 115॥
hk transliteration by Sanscript