Possible Clues:

• Turndown to the suggestion 'We should ...'
• 'We'd better avoid it'
• 'We should avoid doing that'
• "Mmm . . . how 'bout we skip it"
• Polite turndown of a proposal
• 'We should pass'
• "Better if we skip this"
• 'Better if we skip this'
• 'I'd rather we skip it'
• Negative response to 'Shall we?'