Welcome to the Proof of Brain community. Take a look at this guide:
https://www.proofofbrain.blog/hive-150329/@leprechaun/the-absolute-beginner-s-guide-to-proof-of-brain. It's a about how to use the Proof of Brain interfaces for brand new users. Much of it applies to Hive at large.
Thank you @leprechaun for the warm welcome. I would make sure to click the link and read it up