Be confident and vlear on whats you know.
Preparation by equipping yourself with relevant information about the company in which you are attending the interview is crucial.
Be specific, interviewers are generally looking out for statistics and revenue numbers.
Make sure you are also well aware of your current company’s specifics as well.
Having competitor information is a definite plus point and shows that your knowledge of the industry as a whole is well aligned.
I always prepare for the interview in three segments,
1. about me,
2.about company and
3.role i am applying to and how i will suitable for it.