If you add the tag #proofofbrain to your posts you can earn Proof Of Brain tokens as well as Hive. I'm keen to get all my friends on Hive using the tag because the Proof Of Brain community is really taking off, and my own upvotes are already worth more in POB tokens than they are in Hive.

https://www.proofofbrain.io/proofofbrain/@frot/proof-of-brain-is-exceeding-my-wildest-expectdons