1.use the friggin "E" key
2.Dont dm yourself
3.try relaxing
4.Dont take it seriosly
5.Use "Shift+space" alot.
6.Try different starting poses
7.try relaxing/holding all sometimes
8. HAVE FUN!
Zinkon there I think he ment to playing styles there ar stiff en limp. Limp means you keep most of the joints relaxed at all time and only use a few. Stif meaning exactly the oposite of that holding all joints and use a lot of them.
Also stiff is stronger and easier to control, but limp is harder to dm and the fact that it's hard to control makes it harder for your enemy to control you. Also limp moves sometimes get REALLY strong.