Kavyaprakasha 2.321

2.321

atra bhītānaneti / etena hi nīcaiḥśaṃsanavidhānasya yuktatā gamyate / bhāvādīnāṃ padaprakāśyatve 'dhikaṃ na vaicitryamiti na tadudāhriyate /

Here, [the suggestive element is] “with a frightened face”. By this indeed, the propriety of enjoining her to speak softly is understood. When emotions and the rest are revealed by a word, there is no special strikingness; hence no example is given.