I would hit downtown around midday. Walk College and Beaver Ave. Plenty of options...The Tavern and Corner Room are good for a more upscale meals. Champs, Zeno's, Cafe 210 West, Local Whiskey are good, lively spots for drinks. It's a good 1.5 mile walk from downtown uphill to the stadium. Definitely allow yourself time for tailgating! It is quite an experience with a beautiful setting. Most PSU fans are friendly and inviting, although an entire day of drinking will also mean you may encounter a few drunk and ignorant college kids that can't handle their alcohol.