The best thing is to go to model drawing sessions. There kinda hard to find. Look around or see if you can find flyer's and such at the local college. It's usually organized by artist's. You get to draw/sketch a nude model for like 3 hours in a room with other artist's. Usually there's like a tip jar set-up and food/drinks. You get a lot of practice at these, ranging from 10 sec. sketches to 1 hr. drawings. That is THE BEST way to practice you're anatomy.
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