ok i'm not as epic as nuthug, but he has a point.
I'll make this quick and easy,for the most part dancing comes natuarally from skill of playing over a peroid of time. What i'm trying to say is:you learn dancing after you play for a long time and get used to your tori's joints.
as for starters try to use hold....then relax different joints to add style.
and for your question, use pecs and chest you get a nice twirl.
as you see i am not the best dancer in toribash. (like you i recently started dancing)
Replays of me and friends dancing. it gives a basic point on what i mean
Break it down!.rpl
Break it down part 2.rpl