A sense of curiosity is one of the most likable qualities one can exhibit when beginning work at a new job. If you appear curious about the people, the hospital, the locality in general, your coworkers will be flattered and impressed. An outward-looking demeanor also shows an active mind. It indicates that you're open to learning new techniques and methods of working. In short, that you're teachable.
Flexibility is one of the most sought-after attributes in any new employee.
There's no advantage to being arrogant. This applies to locum tenens employment as well as permanent positions. If you find yourself in a full time job, on a locums assignment or working for an agency with which you're unhappy, always leave with them regretting your departure and wishing you would stay. Even if you feel you've been treated unfairly, resist the temptation to put your complaints in writing or voicing them in any way at all. Sloppy habits will effect the quality of your patient care in general and certainly won't leave a favorable impression on other members of the department.