Related Clues:
- Acknowledge
- With a ___ (recognizing)
- Acknowledge, in a way
- Give the O.K.
- Signal, in a way
- Give the ___ (pick)
- Indicate agreement with
- Show agreement with
- Signal agreement, in a way
- Relay a bid, as to an auctioneer
- Acknowledge with a head gesture
- Give a head signal to
- Greet silently
- Tacitly acknowledge
- Signal, perhaps