I spoke about how my personal values align with those of BR and the one which I most align to is "Collaborative", which entails working well as part of a team, to ensure we get the best out of ourselves for our clients. I then used the STAR technique to give a situation in which I exemplified teamwork. In the end, I mentioned how I look forward to transferring that skills to BR and then building upon that here.
It's a pretty straightforward question - make sure you do reading of the company website for services we offer/our values/notable clients etc. Less