In ‘What I Wish I Knew’, we ask leaders across MSQ to pick a lesson they’ve learnt during their career that would have made a real difference if they’d known it when first starting out.

It could be a piece of general career advice or a helpful tip related to a specific part of their day job.

Today it’s the turn of The Gate New York’s Chief Creative Officer David Bernstein. David picks out a lesson that he had to learn on the job – or specifically, that he learnt during his first ever client presentation…