Well Allison, I would say speak Korean. It better that the person you're learning with corrects you along the way. Maybe at some point you'd copy their language. In my experience I ask my Korean friends to correct me and the kindly do. When I talk they would correct not only my grammar but also my pronunciation, which is just as important. Of course, you should write done memos of it, so you would study later. Mostly with my friends we speak English. But we do translate English <=> Korean <=> Arabic. My friends are learning Arabic so I do help them just like that. It's a good way to learn a language through conversation. It allows you to experience different varieties of how to express feelings.