1. Important qualities
I thik it's important a care appearance in a first impression.
Qualifications are essential because you need some knowledges about the job you look for.
I think to have work experience is important but not essential because it is good to give an opportunity.
Personality is important too in a first impression because it can say if you are suitable for the job.
2. Job interviews
I was interviewed one time and the impression was good. I get the job.
3. Job advice
I think it's important to be calm, to have a care appearance and to be natural.