[when you're this good-looking; everything is diamonds]
I am indeed~ [If possible; he looks even more pleased than she does. It's so hard to find women interested in machines as much as he.]
Oh my...Brains to match your beauty~ I would love to tell you all you need to know about it! I'm quite the authority on it myself, why infact I-- [Some habits...get cut off in the middle. He's not going to harp on his skills, so he settles for a pause.]