Actually, no don't do it. I am interviewing for vacationers lately and many people seem to be doing that. It may work with some interviewers, but for me it looks very acted, kind of creepy and in any case irrelevant. If you want a tip for management consulting interviews, act like if you are ready to work, discuss your thought process, ask questions where you don't know something, say something that demonstrates imagination, knowledge or creativity and maybe even act a little by getting on the whiteboard as you would in a meeting. If you got the interview you are halfway there, I am assuming HR has already filtered for the best. The interviewer past me will assume even more.