What did lexis and clark receive from the teton sioux

Well Firstly This is a decently difficult question but,

At the first council with the leaders of the Teton tribe, the expedition went through its practiced ritual for meeting Indians, parading in uniform and demonstrating an air gun. The display did little to impress the Tetons, who perceived the Americans as competitors for control of trade in the region.

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secretly cooperate with one another.