Related Clues:

• Sign of approval in words regularly trotted out
• 'Yup,' silently
• Indicate yes
• Show that you understand
• 'Yes' indication
• Retired lecturer gives green light
• Mute salute
• Academy Award nomination, informally
• Third of a kid's poem trio
• Show agreement when lecturer about
• OK gesture
• Affirmative act
• Say "yes" using only your head
• Give the okay by moving one's head
• Bow one's head