Hmm.. I don't think this is the best time to spend your time.
There is lots of subtle nuances in algen's gestures which make them look really nice, all of this comes from years of pratice.
You'd probably be better of learning from Hampton or Vilppu about gestures in the beginning phases, they break it down in to really simple steps you can follow.
Then once you get the hang of it try experimenting creating your own mannequins, the more anatomy you know the better they'll look.
There are no shortcuts, but if there is one thing you want to focus on during gesture drawing it is getting the motion down, not just blocking in the contours.