Don’t know, disagree

 

Whiteman solder chief doesn’t know,

Here I’ve tried to copy the sign from Doctor Lanny Real Bird, Dakota Words & Phrases - Sign Language, Vol. 1

Know not, don’t understand. Indecision or doubt. I don’t believe. The polite way of disagreeing. I have no opinion.

From Indian Sign Language, William Tomkins and Sign Talk of the Cheyenne Indians and other Cultures by Ernest Thompson Seton