Business attire means business.
This means suit usually black, shirt and tie, trousers also black, and some nice shoes also a belt that complements your shoes.
During the interview they will look at all your grooming details (hair, nails, beard) so, try to be as profesional as you can and remember always smile.
Try to feel confortable; if you will get emotional do not worry, explain is your first time they will understand.
Never lie, especially in your curicullum. The subjects that they will require talking about a given subject you can fabulate, is no problem.
Try reading my other posts about interview.
So till next time.
Don't forget to smile
