Er, if you don't mind me saying it's a bit of a daft question as how can anyone else know the personalities in the team and whether they're going to be aggressive, supportive, etc. When I did this sort of thing, a lot depended on whether I had time to prepare - more often than not I'd be rushed off my feet and run to the interview room, looking at the CV for the first time on the way - this meant the candidate would get an easier ride with my generic questions than the real b@stard q's I would prepare if I had time.
If this is 'meet the team' then presumably you've been through a couple of interview rounds already, and this could just be a relative formality to make sure no-one who is going to have to work with you thinks you're a ****** - in which case the main objective will be to try and come across as a decent human being. They might try and wind you up to see what you're like under a bit of pressure, so don't rise to the bait. Also, given that 'IB' hides a multitude of sins, much will depend on what area of the bank you're applying for - an interview with traders is likely to be very different from an interview with bankers where they're looking for bright, but pliable cannon-fodder as much as anything.
