Go to dali asked Gong Caiyun (169 122) to get the signature task, then find a friend with a friendliness of more than 200, click on the friend, and then right-click on the autograph book in the taskbar to collect the friend's signature. Collect the signature of 15, and come back to get a reward, usually more than 60 W of experience, plus a fireworks. I wonder if there are any other rewards.