Related Clues:

• Quiet yeses
• Ouija board responses to 'Does this thing actually work?'
• Says yes with one's head
• Signals in charades
• They're positively responses!
• Signaled yeses
• Some R.S.V.P.s
• Pro team? (Sorrryyyy this is a hard one but I couldn't resist)
• Acknowledges silently
• Chorus from all those in favor
• They can mean 'yes'
• Signs agreement without senior detective
• Nodded answers
• Votes for unknown characters from central Russia
• Non-verbal indications of assent