Possible Clues:

• 'No chance of me winning this hand'
• “Too rich for my blood”
• 'You win this hand'
• Response to an unexpected call?
• Declaration by one who's done playing
• Words spoken after a big raise?
• Remark from one who's obviously not going to call
• Words of resignation at the poker table
• Words while dropping one’s hand
• 'This hand is too terrible to play'