To Frosk and Quickshot: Both of you are very vivid casters and gesticulate a lot even though it is not possible for a stream viewer to see that during the match. Had I not visited LEC studio, I would have never discover that.
Why do you do all that extra moves? Does that help you expressing yourselves or is it just emotions taking control out of you?
For me, it's just an expression of the feelings that I have, and that it feels natural. I gesticulate a LOT, like A LOT A LOT. I always move, wave my hands, talk with my body and it just carries through when I'm on air. I haven't done any formal presentation training at a school or anything, so I don't really know if it's good or bad, but it works for me, it feels natural and I kinda like it :P