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anacoenosis


an'-a-ko-en-os'-is from Gk. anakoinoun, "to communicate"
Also sp. anachinosis
communicacio
the impartener, common cause


Asking the opinion or judgment of the judges or audience, usually implying their common interest with the speaker in the matter.

Examples
And now, O inhabitants of Jerusalem, and men of Judah, judge, I pray you, betwixt me and my vineyard. What could I have done more to my vineyard, that I have not done in it? —Isaiah 5:3-4
Now I ask you to decide: Given the persecution my client has undergone, does he not deserve to have some justifiable anger?

Related Figures
communicatio
The more general term for including one's audience in one's speech.
synchoresis
Placing, with confidence, one's case in the hands of the judge, one's adversary, or the people.
epitrope
A figure in which one turns things over to one's hearers, either ironically, or in such a way as to suggest a proof of something without having to state it.

Figures of Ethos
Figures of Speech and Audience

I'm sure you can all think of your own example without me having to elaborate...