1 important qualities.
I think you must be yourself during an interview and be able to explain your experiences and qualifications in few minutes. Then be positive and without sulking on your face.
From my point of view this is important because an interviewer need to take your best part and you can't seem not sure or not positive during the conversation.
2 job interviews
Yes , I've . My experience was good .
3 JOB ADVICE
DON'T TRY TO SEEM IF YOU DON'T BE!!