Kim Jongkook regarded himself as someone funny. He thinks he's very funny when he says jokes which explains why he loves making jokes around Jihyo, he loved the fact that she would just crackle out so loud at him and it brought a smile to him - it also his ego at the same time, though he wouldn't admit that- when he made her laugh like that. 

Little does he know that Jihyo's only laughing because she thinks he's being really cute. She found it so amusing that she can't help but laugh at his lame jokes, she'll never tell him though because she doesn't have the heart to break it to him. For now she'll keep indulging him, even if the other members were looking at her as if she just grew another head. He cracks another joke and she ends up wheezing in the end because of how hard she's laughed. 

Kwang Soo stares at her disbelievingly and she waves off her beloved dongsaeng, looking at him pointedly and nudges his leg under the table and he lets out a laugh and she turns to look back at Jongkook. 

'He's so cute.'