Quote Originally Posted by MSilvia View Post
Quote Originally Posted by Vercingetorix View Post
Then look straight up and hold the op of your mask and blow air through your nose.
Variations on this work just as well. I personally don't look up, and I pull the bottom of my mask away from my face instead of holding the top. Either way, the idea is that if you exhale into the mask and fill it with air, the air will push the water out through the bottom.
That said, you do have to be looking straight ahead, at a minimum, if you want to truly clear it, else water will just pool at the bottom of the mask. I often see training divers trying to clear their mask while looking down. Doesn't work out well for them.