Related Clues:

• Boring event
• Land where Cain lived
• One way to agree
• Subtle greeting
• Slight downward movement
• Signal 'OK'
• Indication of approval
• Eden neighbor
• Partner of Winken and Blinken
• Bored response
• Open wide, in a way
• Body language?
• Indicate agreement
• Real bore
• Bow the head