Keep it loose
Along with the idea of gesture drawing, sketching quickly and loosely will keep the focus on attitude and storytelling rather then worrying about all the little details. This will keep you from getting too attached to any specific piece that you draw. Beginning with a loose sketch will enable you to make the changes, such as pushing the pose or defining the silhouette, resulting in a clearer drawing. Then of course, when you’re happy with the general pose and gesture it will act as a solid template for you to add the final details.
Sketching quickly will keep the focus on attitude and storytelling