Natyashastra
तथा कलासु काष्ठासु निमेषे तु क्षणे तथा । एश एव करः कार्यो बालालापनिमन्त्रणे ॥ १२४॥
This hand is also to be used to indicate small fractions of time such as Kalā, Kāṣṭhā, Nimeṣa and Kṣaṇa as well as talking to a young girl and inviting her.
english translation
tathA kalAsu kASThAsu nimeSe tu kSaNe tathA । eza eva karaH kAryo bAlAlApanimantraNe ॥ 124॥
hk transliteration by Sanscript