Why was the Kekw guy laughing?

I'm curious to know, why exactly was the Kekw guy laughing? Was it something he found particularly humorous in the conversation, or was it perhaps a nervous habit? Did something unexpected happen that caught him off guard and triggered the laughter? Or was it simply a way to defuse tension in the room? I'd love to hear more about the context surrounding the situation to get a better understanding of what prompted the Kekw guy's laughter.