The man’s brow is furrowed to indicate that a question is being asked. His hand is several inches from his body, aligned with his lower ribs. The palm is oriented upward, parallel with the ceiling. The pinky, ring, middle, and index fingers are bent inward close to the palm. The thumb also bends inward, holding these fingers closed. The right hand moves upward and its handshape changes at the same time. For the final handshape the palm remains oriented upward, parallel to the ceiling. The pinky finger, ring finger, middle finger, index finger, and thumb all open with fingertips facing upward. The sign unfolds, and the head tips slightly backwards simultaneously to indicate a question. Question What sign is shown? (1 point) Responses FOR SALE FOR SALE HOW MUCH? HOW MUCH? SOLD
3 answers
So, based on the description:
The sign shown is "HOW MUCH?"
Keep in mind that in different contexts, the orientation of the hand and the position of the index finger may convey different meanings, but for the purpose of indicating the number one, your description fits appropriately.