I use small buffing, semi-circular strokes.
For the centre I do gentle ATG, small buffing, semi-circular strokes. I think I use the centre to the heel of the blade. This works nicely for me.
My trouble spot is the corners of the mouth - I don't quite get there and then keep trying and end up with a rash. I worked out a good way to do it once... but then forgot how I did it!!
All the best,
Michael.