Related Clues:

• 'I wonder ...'
• Comment from a ponderer
• "Let me think ..."
• 'Well, let me think …'
• 'Hmmm …'
• 'Interesting …'
• ''I'm thinking ...''
• ''Very interesting . . .''
• ''Let me think . . .''
• 'Let me think, ...'
• Mulling sound
• Words after "Hmmm..."
• "I wonder ..."
• Sound of deliberation
• 'I'll try to think of something ...'