I'd vote for speaking. IMO it's easier to convey passion and drive in fuller communication mediums. That said: if you're shy about speaking English, that will

I'd vote for speaking. IMO it's easier to convey passion and drive in fuller communication mediums. That said: if you're shy about speaking English, that will come through. I'd focus on that aspect first: practice speaking with force and excitement. Take videos of yourself and watch them; you're more than capable of deciding when you're ready.) (Full disclosure: I'm biased; I like accents, and unless it's quite thick, generally have no comprehension issues.)