Related Clues:

• Surfer's challenge
• Gunshots from a drab outlying part of London
• Greet us, perhaps, with a wave
• Greet with a sign
• Motion with the hands
• It may be permanent or Mexican
• Sign with the hand
• Greet(ing)
• Shake a hand in the air
• Expressive movement of body
• Expressive physical movement
• Communicate through movement
• Roller — breaker
• Nod of head has little effect
• Put hand up as gesture we hear to surrender