If the real world was pretty much the Pokemon world, I'd probably enjoy it. Once more though, as others suggested, I'd not think it too far-fetched for people to engage in biological warfare with Pokemon. Those things are too damn powerful, and their moves could kill a man easily.
....which makes me wonder how a Pokemon would stand up to bullets, since their lethal moves only seem to knock each other out. Anywho... all that aside though, personally, people can always find ways to cause harm to others, and Pokemon would just be yet another weapon in the closet of humanity. At the least there's no such move that is used by non-legendary Pokemon with the power of an atom bomb (Explosion is probably the force of a good amount of C4 though).
As for what I'd do, I'd probably be just your average trainer, having a few Pokemon as pets. I'd probably just hang around locally, maybe even start my own unofficial mini-league around town complete with 'gyms' and badges.