For Scots tennis ace Andy Murray, the answer to that question appears to be ‘wear a disguise and sell ice cream’.
The 28-year-old Dunblane-born star donned a baseball cap and wig and began working in an ice cream parlour in Cincinnati, OH.
But as Murray served up tasty treats to the shop’s customers, his real identity was soon revealed.
A spokesman for Murray said that he was just ‘larking about’ to see if fans would recognise him behind the disguise.
The Scot is in Ohio for the Cincinnati Masters, and plays Mardy Fish on Wednesday in the second round.