VERSE 34:

vilokayatī govinde smitvā cāru mukhāmbujam
puṣpākṛṣṭī miṣād ūrdhve dhṛta dormūla cālanā

When slightly smiling Govinda sees Her beautiful lotus-face,
She lifts Her armpits on the pretext of picking flowers.

Stavāmṛta Kaṇā Vyākhyā:

In Ujjvala Nīlamaṇi these movements are named svayaṁ dautyā, being one’s own messenger by using physical expressions:

aṅgulī sphoṭanaṁ vyja sambhramādy aṅga saṁvṛtiḥ
padā bhūlekhanaṁ karṇa kaṇḍūtis tilaka kriyā
veśa kriyā bhruvor dhṛtih sakhyām āśleṣa tāḍane;
daṁśo’dharasya hārādi gumpho maṇḍana siñjitam
dormūlādi prakaṭanaṁ Kṛṣṇa nāmābhilekhanam;
tarau latāyā yogādyāh Kṛṣṇasyāgre syur āṅgikāḥ

“Stretching out the fingers, feigned respect, covering the body, writing on the ground with the toes, scratching the ears, putting on tilaka, dressing oneself, moving the eyebrows, embracing the girlfriend, chastising the girlfriend, biting one’s lips, stringing necklaces, making the ornaments jingle, revealing the armpits, writing Kṛṣṇa’s names and making the vines embrace the trees. These are physical expression with which a girl shows Kṛṣṇa Her desires.”

All examples are found in Śrī Ujjvala Nīlamaṇi.