For girls, think "hairball"- you pick it up with your middle-finger and thumb, the elbow leads, then the forearm, then the wrist, and then finally the hand (never have your palm face an audience). Ladies also dance "from the heart" as in, your motions radiate outward and sometimes upward from there. Guys dance from the 'heart' only in a different way... it's like they've stood in a doorway, pressing against the sills, so that when they step away, their arms 'levitate' away from their center, their palms also away.
JMO, could be wrong.