I'm working on building my skills so I know a little bits of things that could help.
Okay the easiest way to draw people without trouble is to learn 'comic-book style' on something like this. Lucky you, you got two choices, manga (which is hard for many westerners to learn) and normal western comic.
There are many websites out there you can get tips from. I suggest as a starter you go to a art community based website like
www.deviantart.com or Elfwood.com. There are others but their the two I can tell you off hand. These places are usually good for idea gathering and seeing a varity of skills and styles. Some folks even go to the bother of making a tutorial.
Professionals and amutuers alike sometimes make websites to this sort of thing. An exmaple of a manga based website with tutorials on would be
http://www.polykarbon.com/ which is easy to find on the net and has many examples of the artists work on it. There are others like
http://www.between-worlds.com/tutorials/comic_tutorial_dropdown.html that give really rough guides.
if you don't like it off a website, then go to your local library, book shop or comic book store. Look up 'how to draw' books. There is one series for the manga style called 'How to draw manga' and at the moment there is in the shops a Marvel book on how to draw characters their style. If you have no intereast in drawing comic book style, however don't fear because the human figure is one of the hardest things to draw. there is always books on them.
Lastly, you can learn lots by getting some real comics and drawings and just copying the poses/characters.
If all else fails... Then you could find a cheap one of these...
But I don't know anyone who can actually use these things... XD'