Video games, TCG, anime and internet.
I enjoy playing the games, both main series and spin-offs, and I play them almost daily.
I would play the TCG more often than I do, but I don't have a league or friends playing it nearby, so I have to take a train when I want to play it. I also go to the tournaments as often as I can.
I also watch the anime when I have time to do so. There is a channel running the first season. I like the nostalgic feeling which I get from it, but I actually think that the first season isn't very good. Here in Finland we have an internet page where we can watch the Battle Dimension season for free. I think that the Battle Dimension episodes are much better than the Indigo League ones, but that's only my opinion...
And almost every time when I'm surfing on the internet I visit many pages related to Pokémon. I read news about upcoming games, TCG sets etc., watch videos on YouTube related to Pokémon, read Pokémon forums and so on.
So it seems like I'm quite active with many aspects of Pokémon. As you may have noticed, I don't read the manga. That's because they don't publish it in Finnish, and it would be too expensive to buy it in English.