[If they weren't doing voice, Spock would also see her side-eye that comment. Deeming laughter "an illogical function" seems super-weird to her, and maybe a little silly. But she'll keep that thought inside.]

I didn't mean that people would be bored of you. That's a little harsh, isn't it? It's just that -- I guess laughter is an emotional reaction, so you have to appeal to people's emotions to put them in the mood to laugh. But it also does have to interest them.