Now I know this isn't the line of action all you animators had in mind - but a new technique I'm developing ( it's in the prototype stage right now) is drawing a line across my midsection from hip bone to hip bone. It allows me to see the slight angles my hips make when I move in the mirror.
Also note :
the multiple tries it took to get the line across.
it is green sharpie.
the love handles.
I'm getting sick btw. so look for an update about that in the week.