You can't really explain a language, I think. Not with words, at least. You take a non-native, explain the basics, then it's all about immersion, culture, conversation. At some point you get the hang of how that language makes you "think".
I mean, you're pretty damn good with English, wouldn't you say that when your mind switches you start thinking a bit different?

About my job, I guess it would be long and boring to get into it. But yeah, it's not been great, and to be honest it's not been much. But most of the time I'm in the game with half of my spirit, you know? I'm pretty happy when I work at something good, it just doesn't happen often. I'm not great at advertising, either. We'll see where I land in a few years...I'm not scared of changing stuff up in that area.