Learn the basics and fundamentals of human drawing before getting too involved in a particular art style. It's great to look at how different artists interpret things into their drawings but it leaves so much more to your imagination and really shows off your creativity if you develop your own style rather than consistently copy another. There are so many people out there who are more interested in learning how to draw a particular
style rather than learning how to
draw.
Most drawings start off with basic shapes and volumes which are then built upon with more detail. Learn to visualize the depth in your drawing rather than just drawing flatly. Practice "twisting" and "bending" simple shapes in 3D space and become more fluent in using multiple-point perspectives to represent your shapes.
A common principle of animation is "solid drawing" in which every frame of a character or object in an animation displays a good sense of depth, volume, balance and weight. It is as much of a necessity in animation as it is in fine illustration. Remember that your object is not simply 2D but is a 3D object projected onto a 2D surface.
As with any art or hobby, drawing requires determination, study, and practice. I have put myself down countless times because I had always thought that my work was never comparable (and it wasn't) with any of the other stuff I'd see from other artists. I was half convinced that they'd been born with a God-given talent and were able to pick up drawing with swift ease, but this isn't true. A good artist understands and shows knowledge in what he is drawing, if he wants very good results he shouldn't attempt a certain facet of a drawing without first studying it carefully. If you are passionate about drawing then consider purchasing a few books off the internet or visit a local book store. Start to draw from life and vary your subjects and the types of media used.
Finally, you will not begin to draw outstandingly well overnight. If you are a complete novice then your drawings are going to be absolutely terrible for days to come, but you will gradually improve as long as you practice and study consistently. Today I can look back at most of the stuff I've shown off here and wish that I never had shown them off to begin with, and even then I still consider the things I produce now as awful in comparison to lots of the stuff I see here and there.
Sorry for the wall of text, it's not every day I'm given the chance to speak so openly about something I love so dearly.

Good luck!
Postscript: I am speaking from personal experience and opinion here, and my information is mainly gathered from what I have learned and read from various sources over time. I am self-taught and thus some of what I've said may be considered biased or even outright incorrect. It is very important that you seek advice from multiple points of view in order to formulate your own ideas.