Whatever the dev wants to talk about, it's their meeting. Hopefully nothing project/team related. We have team meetings were we can talk about team stuff, we have daily stand up and possible meetings for project related stuff. They only time I want them to talk about project related activity or team related activity is if they feel they can't talk about with other developers.

But mostly, It's about them, how they are doing, where they are doing well, how they can improve, where they are going with their career. Hopefully feedback to me about me too.