skim - graze - rub - scrub
'She landed hard, eagle-spread on the ground, feeling the damp cold rough surface ... her back.'
graze
'I ... my skin on the rough pavement, and now had twin bleeding elbows.'
grazed
Emma fell down and ... her knee.
grazed
'He disappeared into the house, and I began warming my arms by ... them.'
rubbing
'He wrapped his arms around her, ... her back, trying to calm her.'
rubbing
'The day I ... the blood off my camera bag was the first time I really cried.'
scrubbed
To drink, these graceful birds ... low over the surface scooping water with open mouths.
skim
'One hand left the warmth of her body and ... lightly over the surface of the jade pool.'
skimmed
'When I opened my eyes, we were dancing on ice - skating, flying, ... across the mirrored surface.'
skimming