Please choose the correct solution to the question: How to use a slingshot

Solution1: Place a rock or marble in the leather strip of a sling shot. Clench the rock or marble with the leather and pull back while smiling. Release the rock or marble.

Solution2: Place a rock or marble in the leather strip of a sling shot. Clench the rock or marble with the leather and pull back while aiming. Release the rock or marble.

Answer format: solution1/solution2
Answer: solution2