The Last Ten % Type of Conversation

How do you approach a conversation with a guy who's working just hard enough to not get fired? I like doing it over a meal or over coffee. One of things i love about the last ten % language that we use is that it normalizes the conversation. And then say something along the lines of, i dont wato have this conversation, but we need to have it. In fact, i think god calls for it in this situation.