I honestly hate people who think they're cool just becuase they use some Japanese words when they speak or talk like they're Japanese when they aren't. If you are legitimately Japanese, that's cool but if you are American and call yourself otaku, I find it dumb. Just call yourself an anime fan. And also don't go using words like senpai cause you just sound stupid. Especially if you misunderstand it. For example, one of my friends kept calling the person they like senpai, but they where the same age.