One conclusion is that practice and effort improves juggling skills (1), which is shown by Sergio’s niece being able to juggle for 10 seconds longer by day 7 (14 seconds) compared to day 1 (4 seconds) (1). • A conclusion could be that getting supportive messages praising effort helps to encourage practise and learning to juggle (1) which is shown by his niece being able to juggle for 10 seconds longer than his nephew by day 7, who did not get any messages (1).