You can find the My Homepage column in the personal center of Qidian. After clicking in, you can see the badge and title certification. Click in to wear the title you own.
How to obtain Qidian titles: First, Qidian officials will release some fan titles during events, and fans can obtain them only by completing tasks. The second is to hold an event for a certain book. After discussing with the official, fans who complete the event tasks can also get the title of fan.