In One Piece I'd be some random NPC that does like, one or two very important things without realizing it whatsoever, possibly with like one big moment.
Focus on a trade, help people out when I can, and try to stay as far away from most pirates and the WG as possible, while keeping contact with some Marines to keep a general feel for the world. That's if I'm lucky to end up somewhere nice, though.
Who KNOWS what I'd end up doing in some weird ass place in the One Piece universe.
At the least, I'm not trying to make a modern concentration camp. Not like it's the first time the US has built one in recent history.