to instruct

TO INSTRUCT: Raise each of the hands to the corresponding side of the head on a level with the eyes; close ends of fingers against thumb (as in “&”); push the hands straight out from the head, and open the thumb and fingers, as if you had grasped something from the head and thrown it out toward some one else.

insane

INSANE: Place the forefinger of one hand on the forehead as in “think,” then bring it away, at the same time bringing the other forefinger up so the two will point toward each other, up and down, and whirl them in opposite directions indicating the “wheels in the head”.

inquisitive

INQUISITIVE: Vertical “C” of right hand as if holding a magnifying glass before the eyes as the head turns from right to left as if searching. The right hand also moves in circular motion, before the eyes.