Related Clues:

• Agrees silently
• Vanishes
• Goes to sleep, with 'off'
• Gives approval, in a way
• Shows agreement, in a way
• Auction signals
• Isn't colorfast
• Silent OKs
• Silent bids
• Indicates yes, in a way
• Nonverbal O.K.'s
• Tacit OKs
• Decreases
• Says ''yes'' without saying ''yes''
• Some bids