Here's something you might try - Stand in the position your character's default pose is. Then, one move at a time, move yourself to the position you want to pose. As you move yourself one movement at a time, do the same with the dials for your character. While doing it, really pay attention to what parts of your body are actually moving. You'll be suprised - most people make assumptions about what part of their body is moving when they move in a certain fashion. You'll get more realistic poses this way. You might look pretty silly while doing it, but you'll get good poses.