You manage the barrier by learning the language. Sorry if it sounds harsh, but I've noticed something with English Speaking folks, they don't want to learn another language. They want people to speak English to them.
It's tough to find people willing to talk with an adult like they're a toddler.
So, I don't think the question is as flippant as you made it out to be. Someone might have some real advice about how to manage the juggling act of learning a new language and culture as a working adult.