Hey Mesh,
Firstly Congratulations for the BU call.
According to me the things that matter most during ur interview is CONFIDENCE, HOW WELL U PRESENT UR SELF, and wht kinda impression u give the interviewers.By impression i mean, they should be assured about ur dedication to the profession and ur keen interest in their program.
Be sure to read BU website , know well about the school .Most questions would be very general like ur future plans, may be about ur work experience back home, some thing about ur family and urself.
I would suggest just dont concentrate on WHAT QUESTIONS?? but prepare urself with confidence and be truthful ( never , ever say some thing at the interview which u dont mean!!!!
Good luck.
CU at BU !!!