In Volume 2 of the K-ON! manga, the light music club drinks tea, they eat food, they go to a guitar store, they go on a summer "band camp." They swim. They chat and joke around. They slack and sometimes, on special days, they work really hard.They get a new member! Asuza is glomped and made to wear cat ears, but only because she's cute as a button. Now that they have a new member, sometimes they even remember to practice.
You know what the Yuriest thing about 5 girls hanging out and doing stuff is?
Nothing.
Ratings:
Art - 6
Story - There is none, but I'm still giving it an 8
Characters - 10, this is a completely character driven series
Yuri - 0
Loser FanBoy - 4
Overall - 8
Read this article on the end of K-ON! anime at Japanator. That's pretty much my definition of the word "otaku."