I will be flying into OKC, first time visitor, will be meeting a friend - is there a best place to meet someone in baggage claim?
I would suggest close to your flight's baggage pick-up point. Just give your friend your airline and flight number and they will be able to find the correct carousel.
Or if your friend doesn't want to park to come in to get you, there's a cell phone lot where she could wait and you can let her know when you've picked up your bag and which sign you're under/by outside of baggage claim.
As I am a international trAveller, will there be free wifi to send a message ?
I believe there is free wifi at the airport.