Years ago, had a young teenager crewing for me. Normal routine - meet at the clubhouse, walk to the float, launch to the boat, etc.
Season #2 he's also crewing for me, walking the the float he notices the launch operator (Lisa, same one as last year) walking toward the clubhouse, his eyeballs track Lisa (probably her paddles), and he walks off the dock into the water.
Guess he grew up a little that winter...