Kiba didn't understand Shikamaru.
Shikamaru could just lay there for hours and not move. It almost made Kiba try to force him to move.
He just wanted to shake the crap out of him and tell him to move and do something for once. Have some fun, go play a sport, train, exercise, anything but watch those damn clouds.
But all Shikamaru wanted to do was watch clouds float in the sky all day.
Naruto agreed with him whenever they walked by him doing his usual routine. Its always at the same time, everyday. It drove them both insane when they tried to get him to do something that required energy and he just blew them off. They didn't dare try to use force to get him to do anything. Temari would yell at them to leave him alone and let him be. That girl scared them when she was angry.
Kiba had once asked Asuma why Shikamaru was like that. All Kiba got was a shrug and a lame answer of "Because thats just who he is". That drove Kiba to ask Shikamaru's team why he did that and he got the same answer which pissed him off even more.
Kiba didn't get why anybody would want to watch water travel through the sky. He would much rather be playing in the mud or training for his next mission.
Kiba finally decided to ask Shikamaru about it. Kiba really wanted to figure it out by himself but that wasn't happening anytime soon, Kiba realized.
Shikamaru looked at him
"Because it's not troublesome, no rules, no other players to deal with, just me and the clouds"