The Kama Sutra
Page 62There are also some verses on the subject as follows:--
A man, who has seen and perceived the feelings of the girl towards him,
and who has noticed the outward signs and movements by which those
feelings are expressed, should do everything in his power to effect an
union with her. He should gain over a young girl by childlike sports, a
damsel come of age by his skill in the arts, and a girl that loves him
by having recourse to persons in whom she confides.