I just picked this up yesterday as part of the Humble Bundle, any tips for a beginner?
Just go out and have fun exploring! When I first started, I got myself sorted with the basics and then I gathered enough materials and built myself a small base underneath the LifePod that you start at. I could then put lockers inside and store stuff that I picked up.
Stay away from the back of the Aurora. That's Reaper territory!
And if the game starts to get really laggy, you'll need to clear out your cache files. Keep in mind that doing so resets the resources that have spawned in the game. But it improves the performance drastically! There's a tool that can do that here.
Honestly, the game is just beautiful and it's so much fun just discovering stuff. But it can also be terrifying at the same time. Just enjoy!