Kamasutra
तत्र निर्दिष्टानि पणितानि तेष्वेनां प्राश्निकत्वेन योजयेत् ॥ १७ ॥
When she consults him about some transaction, he explains how she should go about it. Thus, in connection with the purchase of things, he gets the girl used to consulting him.
english translation
इस वादविवाद में वस्तु का जो मूल्य लगाया जाये, उसके पूछने के लिये नायिका को लगा दे ॥ १७ ॥
hindi translation