If a Loan Officer wants to make a positive impression upon their co-workers and customers, these six characteristics, in nor particular order, seem to be the key...

Honesty and being up front with customers.
Turning in a complete loan application.
Positive attitude and enthusiasm.
Respect and praise for co-workers.
Willingness to help others.
Kindness and understanding

Conversely, if you are trying to alienate others, this is the list. If any of these characteristics describe your behavior, maybe a little change is in order...

Yelling and visible anger/tantrums
Not being available to help handle issues.
Criticizing and blaming others.
Turning in incomplete and inaccurate loan applications.