I don't know why, but I find it incredibly sexy when they film a scene with the two of them walking side-by-side, in step, their (broad!) shoulders swinging. I first noticed it in the season 1 finale when they were in that Army/Navy surplus store, and will confess to rewinding my dvr multiple times just to watch them walking away from the camera. ::sigh:: McGarrett playing with his belt or pistol is just... extra.