H1B REAFFIRMED ,CONSULATE ASK ME TO APPEAR FOR INTERVIEW

H1B PETITION GOT REAFFIRMED BY USCIS & CONSULATE ASKED ME TO APPEAR FOR INTERVIEW

WHICH DOCUMENTS DO I NEED TO CARRY WITH ME FOR INTERVIEW ?

I AM FULL- TIME- EMPLOYEE WILL WORK FOR A CLIENT FROM MY EMPLOYER S’ OFFICE LOCATION.

I AM 1ST TIMER H1B APPLICANT.

PLS SUGGEST