hi! so i make a character with long hair, but the thing is it attach to the face and body, cannot move/dangle by itself. and also the eyebrows cannot move
For groups or layers to warp independently of their parent group, add a "+" to the start of the layer name in PS/AI. This is the same as selecting the group in the puppet panel and checking the Warp Independently option in the properties panel.
Once a group is warping independently, it will be attached from its own origin to its parent group's origin by default. You can attach to a different handle in the parent using the Attach To popup in the properties panel. In Preview 3, if you want to move the origin, you have to do it in PS/AI. In later versions you'll be able to edit the origin directly in the puppet panel.
If that doesn't fix your problem, you can post a screen shot of the layer hierarchy here to see if there's another structural issue.