Light finger grip, rest forearm on knee if possible, small movements.
Hover attitude!
For a given aircraft, c of g, wind, etc, there will be a picture out the front (horizon vs. coaming, windscreen struts etc) that corresponds to helicopter not drifting in any direction.
When you get the 'Pilot Induced Oscillations', look for and select the hover attitude and it will settle down remarkably.
Where do I look?
A relaxed scan in 3 main places - to the horizon out front for hover attitude, to about the 2 o'clock and middle distance for a general overview of what's going on, and closer in (say 10 ft from you) for hover height assessment.
Once you get comfy with it you'll be able to look anywhere and still keep it under control, but when you feel like you're fighting it, relax, breathe and scan.
One other thing I always remember from my early instructors' crusty words of wisdom was that if it takes 1 psi of pressure to move the pedals, try to use only that, rather than 150 psi on one pedal and 151 on the other one to acheive the same result!