Possible Clues:

• Touches base
• Touches a base, then runs
• Touches base before running home, say
• Prepares to score on a sac fly
• Retouches after a fly ball is caught
• Gets back on base
• Waits for the catch before advancing, in baseball
• Retouches third base, perhaps
• Does a baseball runner's job
• Waits for a catch