shall we

• let'sProposal for shared action
• how aboutPhrase proposing an alternative
• come onExhortation or inducement
• invitationRequest to attend
• proposePut forth formally

suggest · question · dance · begin · go · join · together · asking · polite · formal · waltz · proceed · continue · start · agree · offer · request · decision

• yes/no questionsclosed questions, true or false, do you, is it, are you
• question wordswhat, when, where, which, who