Related Clues:

• Affix a signature
• ''Stop'' or ''Yield''
• Make one's name
• Speak with your hands
• Gemini, for one
• Speak manually
• Shake on it
• Finalize a contract
• Not just initial
• Conclude negotiations
• Plus or minus, e.g.
• Formally agree
• Agree to, in a way
• Put one's John Hancock on
• Affix one's John Hancock