Show vs. Tell

Tell Larry and George hate each other.

Show Larry sprinted into the hall and as soon as he saw George, he glared at him meanly. In response, George punched Larry when he got the chance. The fist fight began.
"Stay away from me and my girlfriend, you hear?" shouted Larry.
"You stole her from me!" George replied. As they continued to beat each other up, they realized that they truly hated each other.