Related Clues:
- Signals agreement -- name on document signed using initials only
- Signals assent to ban on games console?
- Positive responses
- Nonverbal acceptances
- Signals the auctioneer
- Some acceptances
- 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'