I taught for a couple years and teaching while "up" was great. I'd just end up making a lot of jokes and go on the occasional tangent which was fine. When you notice yourself doing that, simply state, "but I digress" and go back to whatever you were saying. I had several classes where I taught the same thing so, by the third time I would have perfected my timing and just gone on autopilot acting the part of teacher while being almost unaware of myself.

If I was hypomanic everyday, I'd probably have made a career out of it but, that can be said about a lot of things!