Jaeseok is going to ignore the dramatic gagging specifically. If he doesn't ignore it, then he might start gagging too and then it'll be this whole thing and no one wants that. Holding his hand up to block Kun-woo's face from view, he pointedly also looks entirely in the other direction.

"Okay, okay. Put the serious face away. I know that you want me to be happy. Relax. It was just a joke." Kun-woo is one of few people in his life who he feels makes it clear pretty much every day that all he wants is for Jaeseok to be happy.

"But also..." Letting his hand fall, he cranes his neck and stands on his toes to once more look at Yesung over the crowd, then turns back to Kun-woo. "Seriously? Should we go and ask him if you're right?"