Know your gtts, know signs of bleeding, hone your neuro assessment skills. Many trauma's also have head injuries and TBI. Remember just because trauma pt is sedated and quiet doesn't mean they don't need regular pain meds. Broken bones, as well as all other types of injuries typically hurt so medicate them. Talk to them, let them know who you are, where they are and what you are doing, yes, even to the comatose pt and the vented/sedated.
Spinal precaution is huge in the trauma pts, do your very best to respect that until cleared.
Congrats on the job, you will see and learn so much in a short period of time. Most importantly if unsure, ask!!!