Related Clues:

• OKs you can't hear
• Affirmative actions?
• Grows sleepy
• Signals OK
• Head-shaking answers
• Gives a heady reply?
• Signs an agreement?
• Silent answers
• Bean dips?
• Bobblehead doll actions
• Tacit assents
• Scene enders, perhaps
• Unspoken agreements?
• Acknowledgments
• Agrees tacitly