You're exactly right, you get what you put in to your experience. If you sit in a corner and don't jump in, the staff will leave you alone. If you actively go around and help out in any way you can, they will roll with that too. i find the best way to help build trust with the staff in the ER is to help them out with small things that you wouldn't think of doing as a student. Help with cleaning the beds when patient's get discharged, volunteer to d/c IV lines, go around asking if the nurses need anything done. I did not stop moving when I was there and did everything for them other than pull meds or nursing skills. I started their lines, I drew labs, got the patients on the monitor, did my assessments and grabbed the charts and the 12 leads and did my reports during my down time. I developed a good rapport with the staff and actually got a few intubations while I was in the ER.