I'll be doing a presentation next Saturday at Busan National University; all the details are:
Kotesol Busan-Gyeongnam Symposium.
Come check it out, but in the meantime, I'm giving you a little preview of what I'm going to be talking about. Tip #1 was: "Where are you Going?" and #2 is don't hide.
It's extremely easy to hide behind technology (my thoughts on this in detail here), or a physical thing like a desk but it's actually a relationship that the students want. Don't hide behind a flashy PPT, or leave no room for going off the beaten track, or questions. A funny joke or a moment of inspiration. A re-explanation of something that the students didn't quite understand. Be moving, interacting, and engaging the sleepy or the lost or the bored. Get them back on track. You can't do this from behind a desk.