Hello
No, you don't need to click ads or do tasks in order to earn from your referrals,
you just need to stay active wich is log-in at least once every 90 days.
Of course, if you click the ads yourself and try to do offers and tasks your earnings will go up a lot faster.
And, you would like for your referrals to click, right, otherwise you don't earn any momey for them
so you can understand that your sponsor would like you to work also so that he or she also can make some money.
Good luck