For me, it depends on how well they know DD. If they know her pretty well, I'm open about it, because there's no sense in treating it like a dirty little secret, they'll find out eventually anyway.
If they don't know her particularly well, and there's no other reason to be discussing specific abilities, I might say she does very well at school, and leave it at that. If I'm in casual company and feel the need to talk up DD, I'm more likely to talk about how she makes me laugh, how we enjoy spending our time together, or how she's into so many different things.
