The context of the following conversation is Alex thought he was simply another person in the audience until they called him on stage.:
Alex says This show is super cool..
The friend responds Yeah I thought you would enjoy it!.
Alex responds Yeah! Thank you for buying these tickets man..
The friend responds It's no problem dude, there's more to the surprise though..
Alex responds What do you mean?.
The friend responds They're calling you up on stage!.