A brow raised at the free use of limbs that was being displayed. Not the normal method of battle at all. Kicking out your leg like that might very well get it chopped off and wouldn't do much against proper plate. Effective against each other though, they way they fought made it clear neither man was accustomed at all to being armored.
Boromir took the example of the man who had decided to have a drink and a bite to eat. He sniffed a bit at the provided tisane and sighed. Perhaps a nice ale would be forthcoming later.