95dc162e_Glossary_of_Dance_Terms__m_Dance_Dictionary_from_Webref
Curtsey
In the Demi-Curtsy, the lady (usually) places her left toe to the floor, heel slightly raised, behind the right foot, and then relaxes both knees, keeping body and head erect, and perhaps flaring her skirt. In the Deep-Curtsy, she steps to the side with the left foot, rondes the right in a little semi-circle and places it behind the left, toes out (4th position), lowers well into both knees, again with body and head erect, looking at partner. Alternatively, she may lower into the right knee and extend the left leg to the front as she lowers. The Prostrate Curtsy, in which the lady lowers fully and places her face downward, close to the floor, has little place in ballroom dancing — maybe if your man is royally good.
Glossary of Dance Terms
Description Glossary of Terms and Abbreviations from BallroomDancers.com Dance Dictionary from Webref