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I believe you probably got them from commenting on various people's posts and having them upvoted. Each tribe has a different percentage but you can just treat them as some extra income. I would suggest you figure out if any of those communities are what you want to participate in or not. I tend to just stake them anyways to reward people I vote on if I am not using it for BroFi.

That's Hive's magic! lol
When you curate/upvote a post that has the tags of some of those tokens, as a curator you get a percentage of them too besides hive tokens :)

Like Eliana said...

It's the magic that is Hive :)