I've been learning Portuguese for a while now (Duolingo level 8). I think I'm at a point where conversing with a native speaker would help a lot. I'd be happy to participate in any kind of language exchange, chat or even Skype/face to face meet (which I prefer). Let me know if you are interested!
What I can offer in return is help with English and I'd be happy to show you around New York if you're new in town or just visiting.
I also speak a little Spanish, French, Slovak and Polish in case you're interested.