Syncing trophies help...

Hey guys.... Im going to my grandma's and she doest have an internet connection.... I was wondering how are my trophies being updated without an internet connection??... Say i gain a new trophy at grandma's and i go back to my house, do i have to sync them up??? if i do then how do i go about doing that???

THANX!!!!!!

if you get a new trophy it is saved on your ps3
andwhen you go back to your house with an internet connection you can then sync it up
they don't go away because there is no internet connection

They'll just sync the next time you're back at home with an internet connection.

Thanx alot!!! for a minute there i had thought i had to regain em!!