Rule number one: Don't look at her.
Rule number two: Don't cross the line.
Staying in her father's guest house was supposed to be simple, but Frank is finding it impossible to keep his eyes off Nora. He watches the way she hides behind her clothes and tolerates a guy who doesn't deserve her. Frank knows he's out of line. He knows he's too old to fall into this trap.
He just doesn't care anymore.