Natyashastra
व्रजेत् प्रच्छन्नकामस्तु पादैर्निश्शब्दमन्दगैः । शब्दशंक्युत्सुकश्च स्यादवलोकनतत्परः ॥ ४७॥
In secret love-making, the lover should walk quietly with slow steps, Anxious about sounds, eager and attentive to every glance.
english translation
vrajet pracchannakAmastu pAdairnizzabdamandagaiH । zabdazaMkyutsukazca syAdavalokanatatparaH ॥ 47॥
hk transliteration by Sanscript