I use both hands, switching to keep the edge of the blade facing me as I work. The goal being, so I can actually see flush contact with the bevels. I haven't always done that, but made the effort to train my non-dominant hand (left) for it. Surprising thing was, I noticed later my left hand seemed to have more of a finessed light touch than my right. I kept noticing the scratch patterns were more uniform-looking on the side of the blade controlled by my left hand. My right hand is physically stronger - but a little more shaky when using a light touch. I notice that tendency in other things as well, apart from sharpening. I realized I needed to attempt to adapt that finessed touch to my right hand. Jury is still out on that. But I'm making the effort once again to improve.
At times, I've also practiced using just one hand - either left or right - and flip the blade for each away / toward pass on the stone. I've done this also in the mindset of expanding my abilities and developing some muscle memory I previously didn't have. And training with the blade edge facing away from me is (hopefully) helping to further enhance my 'feel' for flush contact on the bevels, even if or when I can't actually see the edge making flush contact.