It's probably already clear, but just in case: it's not supposed to be mirrored. If clockwise is harder for you using your non-dominant hand, try to rotate the

It's probably already clear, but just in case: it's not supposed to be mirrored. If clockwise is harder for you using your non-dominant hand, try to rotate the water clockwise for each hand. If counter-clockwise is harder using your non-dominant hand, try to rotate the water counter-clockwise for each hand. If neither hand is dominant, pick the rotation direction that's harder overall for you. Another important note: try to rotate it as quickly as possible. 3 - 4 Hz of rotation for the cup is OK.