Related Clues:

• 'When is this thing over?'
• Bedtime "Land"
• OK sign, maybe
• Indicate uh-huh
• Open wide?
• Signal at Christie's
• Nonverbal 'yes'
• Impatient gesture
• "Go ahead" signal
• Nonverbal assent
• Sleepiness sign
• Indication of a green light
• Acknowledge silently
• Use your head positively?
• Wordless OK