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Related Clues:
- Wordless okays
- Silent endorsements
- Moves one's head to the beat, say
- Quiet yeses
- Says yes with one's head
- Signals in charades
- Signaled yeses
- Acknowledges silently
- They can mean 'yes'
- Signs agreement without senior detective
- Non-verbal indications of assent
- Approving bobs
- Subtle auction bids
- Moves of agreement
- Audition acceptances