The scuff in the paint can be polished out if you can't feel it with your fingernail when going across it using some white polishing compound.
First try it with a liquid wax if you have some and give it a good hard rubbing. It works on light scuffs, not scratches that you can feel thou.
The scuff on the chrome is not repairable and better left alone. If there was a transfer of something like paint or shoe sole, it can be removed with lacquer thinners. Chrome is only a mil or so thick and using an abrasive polish will rub through to the nickel plating underneath.