Manusmriti

siva.sh/manusmriti/7/67

स विद्यादस्य कृत्येषु निर्गूढेङ्गितचेष्टितैः । आकारमिङ्गितं चेष्टां भृत्येषु च चिकीर्षितम् ॥ ६७ ॥

sanskrit

With respect to the affairs let the (ambassador) explore the expression of the countenance, the gestures and actions of the (foreign king) through the gestures and actions of his confidential (advisers), and (discover) his designs among his servants.

english translation

sa vidyAdasya kRtyeSu nirgUDheGgitaceSTitaiH | AkAramiGgitaM ceSTAM bhRtyeSu ca cikIrSitam || 67 ||

hk transliteration by Sanscript