Do my friends have to join or play or once I add them its enough??
One of our ongoing campaign is: you join our group, and you show following us on twitter screenshots/ your address there, then we will record you 1 score(20 Token).
If you want more, you can join further, to add your friends (who hasn't been there) to the group. One more friends you added, one more score you will get, every score you will recive 20 Token for reward. And we will reward the most invitation top 3 advocate users ETH. More details plz see our group's pinned message.