A reading conference is a 3-7 minute individual conversation between teacher and student about the student's reading. The student is reading independently (at their chosen level, in a text they've selected) and you pull alongside them, ask a few focused questions, listen to them read briefly, and leave them with one teaching point to try.
Lucy Calkins and the Teachers College Reading and Writing Project popularised this approach, and Australian literacy educators have adapted it effectively for our context. It's the closest thing to a guaranteed accelerant for reading — differentiated, responsive, and relationship-building all at once.