Working shift, you are comfortable with their shift or not. How much salary you will need. you have to visit other place that thing you are comfortable or not. My Ans is if you are a fresher you have to say every thing yes. yes you can negotiate about your salary but i suggest not to do, it will create a bad impression. if you stay longer in any position they will promote you.. yes you have to prove your superiority.. why company will pay you..? they will start with basic your information. they will not ask you introduce your self. they know in IT Profession skill is every thing..