While I've totally been there in terms of receiving direct coaching from my friends and family, I honestly think that your friend may just need to check out some stuff on his own. There are a million awesome resources all over the web, which can be a little overwhelming for a new player, but I actually know some folks over at an ed tech startup, Mentormob, who are working on creating a free simple to use guide that draws from a lot of the existing online materials.
It's super easy to use for beginners and has been pretty well received by even some of the more experienced players. Anyways, check them out. They are still a startup, so obviously any feedback youguys have about this guide would be super valuable. Feel free to let me know and I can shoot them some of your thoughts.
http://www.mentormob.com/starcraft
Cheers,
Kimberly