Installing Memory in Brand New MacBook

[Pablo72]

Soon be taking delivery of a MacBook, and have ordered 4 gig of ram from our friends at Overclockers.

When I get the Mac should I install the new memory before my initial turning on of the machine? Or should I do an inital boot, closedown, and then install the new ram?

Cheers

 

[Pablo72]

A change to the ram size from when the macbook left the factory (so to speak) would not affect the inital start-up then?