I showed her Nintendogs late last year when I got it, probably because I was spending some time at work calling around to see what stores in the city had it available, and so she was interested as to why it was sold out everywhere.
When I did show her, I think she thought it was neat, but I don't think it was exactly her thing, but Nintendogs and Brain Age have been the only games I've bothered trying to show other people who don't usually game.
(As for my boss (supervisor, really) she actually plays a lot of Halo and Halo 2 with her son. She plays games on their Xbox 360, as well. So it's not like she doesn't play games. But judging by how busy she always seems to be, she only wants to play games that are worth her time, and her enthusiasm to get Brain Age even before I showed her must mean that Nintendo's doing something right.)