Clean the surface of the couch with a soft, clean cloth moistened in water. Allow the leather to air dry for an hour or so.
Apply cream shoe polish that matches the color of the couch to the scuffed areas using a shoe polish applicator, which is a soft foam pad that is supplied with the polish or sold separately at shoe and shoe repair shops. Work it into the scuff with the applicator and wipe off excess cream with a soft, dry, clean cloth as you finish touching up a scuffed area.
Buff each area with another soft, clean cloth after you wipe away any excess cream.
Apply leather conditioner to the entire couch according to the instructions on the package as soon as you have touched up all of the scuffs. The leather conditioner protects the polished areas and evens out any minor differences in color between the original finish and the polish.