The most important thing to remember about hovering...
Hovering is like riding a unicycle on a frozen lake, covered with thin ice, while juggling flaming chainsaws, that are all running at full speed, while surrounded by rabid and ravenous wolverines.
Easy huh?
(Thank you Brad Moreland for that analogy)
Okay.
Get it light on the skids first.
Usually between 50 to 60% on the Torque gauge.
Not enough to lift off.
Then, very,
very, slowly add more collective. (Throttle for you fixed wing guys

: )
Lift
slightly off the ground.
Be prepared to add in some tail rotor to counteract yaw.
Don't fight the stick.
Small movements. Small movements.
Then practice holding it in place.
Usually on the centerline of a runway is good because you can see if you are moving in the hover, if the line is moving.
Now here's the pitch...
If you really want to learn, come on over to
www.hovercontrol.com
We have folks online that are willing to help.
We use TeamSpeak 3, and don't let the FSInn server interface scare you.
They'll help you with setting that up as well via TS3, and it is not hard on any system's resources.
Folks come over to HC and learn to hover, and transition to and from a hover.
HC has some training scenery available for a couple airports.