Most likely the interviewer will not even offer their hand.
No I don't think that will be the case! It's standard protocol to shake hands...at least in the west! I would just shake the hand...and not worry about this issue that much...like someone mentioned above Allah (swt) knows your real intension...and living in this world in this day and age there really imo isn't anything wrong with shaking a guys hands...in a business enviroment...now stop worrying about this handshake issue and focus on the actual interview yaar!! :)