#1. Direct your friend to this forum. We have many years of valuable knowledge and experience between the regular contributers.
#2. DO NOT park hop as a first-timer. Each park will take a day. Guaranteed.
#3. HAVE FUN! Do what you want. Be sure to pick up a park map and times guide when you enter the park but don't marry yourself to them. If a ride looks to intense (or lame) for your party, don't do it. If you want to ride rides instead of catching a parade or fireworks, so be it. But let me tell ya, as a first-timer, you're going to want to see the parades and fireworks. LOL!