Somehow, that happens. It's part of living hehe. We should socialize in the real world and create connections.
HP means Hive Power. We earn if our posts or our comments get upvoted, and when we curate. If you check your wallet, you have 397 Hive Power and 28.778 HBD (Hive Backed Dollars); these are your rewards for posting, commenting, and curating (your HP earns you curation rewards when you upvote people's content).
You can read more about this HERE. To learn further, check out the FAQs