Related Clues:
- Praises manually
- Puts on a happy face
- Gives a heady answer?
- Agrees silently
- Displays amusement
- Goes to sleep, with 'off'
- Sounds of thunder
- Gives approval, in a way
- Shows agreement, in a way
- Auction signals
- Good sign for a comedian
- 'Candid Camera' reactions
- Flexes one's zygomatic muscles
- Silent OKs
- Expresses pleasure