Jaime Robinson is one of the industry's best-known creatives. The former Wieden+Kennedy executive now runs her own shop, Joan, which she co-founded last year with former Refinery29 exec Lisa Clunie. But she sees her job  -- and that of anyone in advertising -- pretty simply: It's about entertaining people. On this week's Starting Out, Robinson talks about her first job, her first advertising job and the importance of finding the right business partner.