I'm being productive in the new job (halfway through my first full week).
I also was helpful in another, non-work way recently: I'd noticed an odd thing happening to a podcast I listen to, and I emailed the people who do the podcast to say "hey, notice [this]?" One of the hosts got back in touch to say "hey, [this] happened because of a mistake that we can correct now. Thanks for letting us know!"
Positive reinforcement! Yay, I'm doing positive things that are leading to positive reinforcement!