As a snowboarder I can't give you ski specific advice and I'm really just a journeyman:
* The soft snow acts a brake so take more direct lines than you would on-piste to avoid stalling.
* Try to take lines where there is mostly untracked snow. Crossing a few tracks is fine but if it's mostly tracked it get real bumpy and hard to control
* Avoid submarining, by concentrating on keeping the nose(s) up and out so that you surf through the snow i.e. you being floated by the pressure of snow under you, flying really.
* You really dont need to press edges, you are just steering by directing pressure -it's quite subtle and works best if you're really calm, gentle and relaxed. It helps if you look well ahead so that your steering can be well planned and gentle
* You can "surface" by putting in a little weigh-unweight bounce and this helps when steering as it briefly frees you from deeper snow to make the turn. If you manage to do this rhythmically it feels lovely and you get some beautiful S lines left when you look up the hill
* Shallower slopes are "normally" safe from avalanching, esp when others have left tracks there. Think carefully before taking lines more than a few metres away from existing lines because weak points that trigger avalanches can lie hidden quite close to where others have passed without incident. In particular, watch out on steep slopes for slightly dull looking wind-deposited snow that cracks to slabs.
* if you are in any doubt about a slope, go one-by one and stop well away from the line of descent. Ideally be equipped and practised with rescue equipment.