Related Clues:

• Grunts
• Hesitant sounds
• Speech stumbles
• Sounds of hesitation
• Sounds of indecision
• Verbal stumbles
• Hesitations
• Sounds of uncertainty
• Inarticulate pauses
• Sounds of doubt
• Speech fillers
• Uncertain reactions
• Hesitation sounds
• Conversation fillers
• Stammering syllables