[ Her smile, even a subtle one, seems to really lighten the mood. Adrien can't help feeling a little relieved (because honestly, it would've been pretty embarrassing to be wrong), but he can also see how uncomfortable she is, so he thinks maybe he shouldn't push it. ]

I'm Adrien Agreste. She's my dad's new business partner.

He hasn't exactly introduced me yet, but... I've seen pictures and stuff.

[ He doesn't want to insult her by saying "I had no idea she had a daughter" (though it's probably obvious)... or worse, "I don't really see the resemblance."

Yep, at times like this, it's best just to shut up. ]