Pittsburgher here.
The incline is very cool and unique. Don’t miss it!
Depending on what he/she likes, the Carnegie science center OR the Warhol museum are both very good, top notch museums.
Strip Disrict is a lot of fun, as is Squirrel Hill and Shady Side.
Cathedral of Learning and Phipps are close to each other…as are squirrel hill and shady side.
People are VERY FRIENDLY!