Possible Clues:

• Noncommittal reply to 'Will you?'
• 'If ___ say so . . .'
• ''Perhaps''
• "If — be so bold ..."
• Words from one who's on the fence
• Wishy-washy R.S.V.P
• Reply from one who's on the fence
• 'Haven't decided'
• Waffling response
• 'It's a possibility'