Square-dance auntie shrugging stick figure
Palms up: the square-dance auntie is shrugging, which reads as confusion without a speech bubble.
Next to the signature, dancing with a fan held high, this shrugging pose is the other side of the square-dance auntie.
The square-dance auntie's shrugging pose is in the confused collection; grab the PNG for a slide or the SVG if you need to scale it.
How to use: Teach an open question with the square-dance auntie shrugging, use it as the lost panel of a comic, or post it as the reaction.