Related Clues:

• Raise one's hand, perhaps
• Cry ''Taxi!''
• Wave from the curb, say
• Cry "Taxi!"
• Decide not to walk, perhaps
• Signal to taxi in America - applaud it
• Yell ''Taxi!''
• Seek a ride, in a way
• Yell 'Taxi!'
• How to get to Carnegie Hall, perhaps