Due to the nature of their job, midwives have probably seen it all. After all, having a baby is a pretty complex and unique business. Dancing and laughing during labor, though? That just might be a first.
While the technique (and certainly the upbeat enthusiasm) might be unique during active labor, getting active to encourage baby to drop isn't. Some more common ways that women try to help the process along are walking, using a birthing ball, squatting and practicing pelvic tilts. These are all unique practices, but they have the same thing in common; they help strengthen and stretch the pelvic and core muscles, as well as relax and open the hips.