I think the trick is to make the lesson as unlike a lesson as possible. I can do study myself so I don't really need a teacher for that. What I need is to find a repertoire of activities that are fun to do for the both of us. The teacher will be motivated to teach and speak in Korean if they are enjoying the time together and the time is passing by quickly. I will learn more if I am busy engaged in doing the activity together and not really focusing on learning Korean. Because I am absorbed in the activity and interested in what I am doing, I will pick up Korean as a byproduct of that activity and this is a more enjoyable and natural way of learning Korean. Picking up Korean in other words will be relatively effortless.
And this is the best way for the beginners. I think I will try and find a range of activities and try them out. If they don't work out, find others.
It is very easy for language teachers to lose interest when teaching beginners. Therefore, if the class doesn't seem like a class or more precisely a class for teaching a language, then the learning will take place more pleasantly.
That is why people learn on the job or in school much more quickly than they do by attending a language course. This is because at work, the purpose of going to the place is to do the work and not to learn the language. At school, you are there to learn many subjects not just languages. Acquisition of the language is a natural inevitable byproduct of attending those places.
So, I will try some things. I might even draw up an activity sheet and print it off so that I have a ready reference of activities.