First, if you hone in hand, make sure that you fingers are BELOW the top surface of the hone. That way you get to keep all of your fingertips intact.
Second, I prefer to not use fingers to hold the hone at all. Just lay the hone on your flat open palm. This has the advantage of allowing some sway in the hone. If you have trouble keeping the razor flat on the hone, the open palm allows the hone to tilt a bit to adjust to an imprecise stroke.