There are very few people Shikamaru would consider a friend, mainly because he's a pretty independent type a guy who won't really care what others think about him. To him, Naruto's a pretty obnoxious and noisy guy, but otherwise he can see that he only has the best intentions in mind for the people around him. He doesn't agree with the stuff that Naruto does because they're so irrational, but whatever. It's none of his business.
That, and what I just typed out for Tenten. Shikamaru doesn't really think of a person unless he's super close to them—a process that can only take years or a very particular type of interaction. He just doesn't have an opinion of Naruto, because he just doesn't think about these things. To Shikamaru, Naruto's just another guy in the world, and whatever he does is none of his business.
Not yet, anyway.
(Read comments)
Post a comment in response:
scribbld is part of the horse.13 network
Design by Jimmy B.
Logo created by 
hitsuzen.
Scribbld System Status
