Possible Clues:

• 'Who woulda thunk ...?'
• 'Hmm, that's odd!'
• Clueless query
• 'Ya don't say!'
• Whatever way you look at it, it comes as a surprise to you in hotels
• "That's odd"
• Response to bewilderment
• 'Wait, what did you say?'
• Indication that you don't get it
• “Well, that’s a surprise!”