Take an extra set of clothes to work. Know the supplies need to put in a ventric, A-line, central line, chest tube. Know what your room will need before the pt arrives and set it up.. Tubing, suction, clean gown, wash clothes, bandages etc..
Nothing is more exciting than landing a fresh trauma and assisting the MD. Cleaning the pt and getting them stable and ready for family to come in..
Listen to the "experienced" nurses talk to the family and explain what is going on, what this is for.. Listen to the MD's talk to the family, when he or she leaves, they will ask you more questions.. Know what you can and can not say..
Know your drips for hypo/hypertension and your units max.
You will see a lot of head injuries and knowing how to do a good neuro assessment is key. You will see some amazing and very sad things. Just keep watching, listening and asking