It is fun to look through all the idle animations already in the game. I'm not sure if you have done this. In geck, click on idle markers and click "new" as if you were making a new idle marker. Then click "new" in the idle marker dialog, and you get a window where you can preview all the idle animations. (There may be a simpler way to reach this dialog box.) Select any character as the preview actor, and then you can click any idle to see it animated. For example, SitStoolListenA, LooseLookingAround, etc. Do you want to use some of those? Or did you want to make a custom idle animation?