Micra 1.0 Wave Tyre pressure help?

Hi guys can anyone please help with this question? I got my daughter a Micra 1.0 Wave which has alloy wheels fitted. I think these are aftermarket ones as there is no tyre pressure advise in the handbook for the tyre size. The actual tyre size is 185/60R13, would anyone have the recommended tyre pressures or any advice on how to find out? Thanks in advance Stew.