Aparty to a lawsuit that has an actual stake in the outcome of the case has:

This is called standing or locus standing. This is where a party can sufficiently demonstrate a connection to a case. That any result would affect him. The gravity of the outcome would depend on the amount of involvement the party is to the case. 

if it is for a job, then you should learn everything you can about the job, like what does it involve, what qualification is required and how you are the right person for that job. dress appropriately for the interview. get plenty of rest the night before. good luck!