Ujjvalanilamani 11.31

11.31

atha vilāsaḥ-
gati-sthānāsanādīnāṃ mukha-netrādi-karmaṇām |
tātkālikaṃ tu vaiśiṣṭyaṃ vilāsaḥ priya-saṅgajam //

Now, amorous dalliance (vilāsa):
The momentary distinction of gait, standing, sitting, and the movements of the face, eyes, and the like,
arising from contact with the beloved, is amorous dalliance.