How do I get my apps back?? iOS 6 update and 4s Phone

Just updated to iOS 6.01 for my 4s (waiting for googlr maps to be available).

So, my apps are gone and I can see them in iTunes but have no idea how to get them back on the phone or how to get instructions to do this. The upgrade did not seem to effect my contacts or other data. just want to know how to resotre the apps.

Thanks in advance.