them. You're gonna get the same old Mormon jokes you've heard all the time. You're going to see language. Many of these fans are going to try to get a rise out of you. Don't be an easy target.
Joke along with them. Be honest in your thoughts/opinions. If someone is just trying to troll you, ignore them or (lightly) troll them back.
Welcome them to Provo and give them ideas of what to do here if/when they ask. Ask them what there is to do in their city. It doesn't have to be a bad experience. Just pop in and say hi if you feel so inclined.